test: clarify execution error locate controls

## Summary

Adds an end-to-end (Playwright) test for the on-node image-grid
thumbnail behavior introduced in #12561 (FE-741), kept in its own PR so
#12561 stays scoped to the fix + unit tests.

#12561 makes small on-node grid cells request a lightweight thumbnail
URL (`preview=webp;75`, server-resized via `res` on cloud) instead of
downloading the full-resolution `/api/view` image. That PR covers the
helper and component with unit tests. This PR adds the missing
**integration** coverage: it drives a real `Preview Image` node in the
browser, injects a multi-image grid over the websocket, and asserts the
rendered grid `<img>` elements request thumbnails.

It exercises the full path the unit tests can't:

`executed` WS output → `nodeOutputStore.buildImageUrls` →
`getGridThumbnailUrl` → rendered grid `<img>` `src`

## What it checks

- A 4-image `Preview Image` grid renders 4 cells (`viewMode ===
'grid'`).
- Every grid cell `<img>` `src` carries the compact thumbnail format
(`preview=webp;75`; the `;` may be percent-encoded as `%3B`).
- Each `src` still points at the real `/api/view` URL for that output
(`filename=grid-<n>.png`), confirming it's the thumbnailed view URL, not
a placeholder/blob.

Lives next to the existing batch-preview test in
`browser_tests/tests/vueNodes/interactions/node/imagePreview.spec.ts`,
reusing the `ExecutionHelper` + `webSocketFixture` injection pattern.

## Notes

- **Stacked on #12561** (`jaewon/fe-741-onnode-grid-thumbnail-preview`).
Without that fix the grid cells use the full-res URL and this test is
red — i.e. it's a true regression guard. Retarget to `main` once #12561
merges.
- Gallery/full-view URLs staying at full resolution is already covered
by the unit tests in #12561 (`currentImageUrl` is left untransformed);
this test deliberately scopes to the grid path to avoid depending on
injected previews actually resolving on the backend.

## Test Plan

- [x] `pnpm typecheck:browser` clean
- [x] ESLint + oxlint clean
- [ ] e2e CI (`ci-tests-e2e`) green on this PR

browser_tests/fixtures/utils/boundsUtils.ts

@@ -1,4 +1,4 @@
-import type { Page } from '@playwright/test'
+import type { Locator, Page } from '@playwright/test'
 
 import { SELECTION_BOUNDS_PADDING } from '@/base/common/selectionBounds'
 import type { CanvasRect } from '@/base/common/selectionBounds'
@@ -91,3 +91,21 @@ export async function measureSelectionBounds(
     { ids: nodeIds, padding: SELECTION_BOUNDS_PADDING }
   ) as Promise<MeasureResult>
 }
+
+export async function intersection(a: Locator, b: Locator) {
+  const aBounds = await a.boundingBox()
+  const bBounds = await b.boundingBox()
+  if (!aBounds || !bBounds) return undefined
+
+  const y = Math.max(aBounds.y, bBounds.y)
+  const x = Math.max(aBounds.x, bBounds.x)
+  const bot = Math.min(aBounds.y + aBounds.height, bBounds.y + bBounds.height)
+  const right = Math.min(aBounds.x + aBounds.width, bBounds.x + bBounds.width)
+
+  if (y > bot || x > right) return undefined
+
+  const width = right - x
+  const height = bot - y
+
+  return { x, y, width, height }
+}

browser_tests/tests/load3d/load3dSerializeCache.spec.ts

@@ -0,0 +1,63 @@
+import { expect } from '@playwright/test'
+
+import { ExecutionHelper } from '@e2e/fixtures/helpers/ExecutionHelper'
+import { load3dTest as test } from '@e2e/fixtures/helpers/Load3DFixtures'
+
+type Load3dImageInput = {
+  image: string
+  mask: string
+  normal: string
+  recording: string
+}
+
+type PromptBody = {
+  prompt?: Record<
+    string,
+    { class_type?: string; inputs?: Record<string, unknown> }
+  >
+}
+
+function getLoad3dImageInput(body: unknown, nodeId: string): Load3dImageInput {
+  const prompt = (body as PromptBody).prompt ?? {}
+  const node = prompt[nodeId]
+  expect(node?.class_type, `node ${nodeId} should be Load3D`).toBe('Load3D')
+  const input = node!.inputs!.image as Load3dImageInput
+  expect(typeof input.image).toBe('string')
+  expect(typeof input.recording).toBe('string')
+  return input
+}
+
+test.describe('Load3D serialize cache', () => {
+  test('starting a recording forces the next queue to re-capture (FE-905)', async ({
+    comfyPage,
+    load3d
+  }) => {
+    const exec = new ExecutionHelper(comfyPage)
+
+    let firstBody: unknown
+    await exec.run({
+      onPromptRequest: (body) => {
+        firstBody = body
+      }
+    })
+    const firstInput = getLoad3dImageInput(firstBody, '1')
+    expect(firstInput.recording).toBe('')
+
+    await load3d.recordingButton.click()
+    await expect(load3d.stopRecordingButton).toBeVisible()
+
+    let secondBody: unknown
+    await exec.run({
+      onPromptRequest: (body) => {
+        secondBody = body
+      }
+    })
+    const secondInput = getLoad3dImageInput(secondBody, '1')
+
+    expect(
+      secondInput.image,
+      'after starting a recording, the next queue must re-capture ' +
+        '(image filename must change) so the recording is not dropped'
+    ).not.toBe(firstInput.image)
+  })
+})

browser_tests/tests/propertiesPanel/errorsTab.spec.ts

@@ -41,7 +41,7 @@ test.describe('Errors tab - common', { tag: '@ui' }, () => {
       await comfyPage.setup()
     })
 
-    test('Should filter execution errors by search query', async ({
+    test('Should keep execution errors matching the search query', async ({
       comfyPage
     }) => {
       await comfyPage.workflow.loadWorkflow('nodes/execution_error')
@@ -62,9 +62,9 @@ test.describe('Errors tab - common', { tag: '@ui' }, () => {
       await expect(runtimePanel).toBeVisible()
 
       const searchInput = comfyPage.page.getByPlaceholder(/^Search/)
-      await searchInput.fill('nonexistent_query_xyz_12345')
+      await searchInput.fill('Execution failed')
 
-      await expect(runtimePanel).toHaveCount(0)
+      await expect(runtimePanel).toBeVisible()
     })
   })
 })

browser_tests/tests/propertiesPanel/errorsTabExecution.spec.ts

@@ -41,7 +41,7 @@ test.describe('Errors tab - Execution errors', { tag: '@ui' }, () => {
     ).toBeVisible()
   })
 
-  test('Should show error message in runtime error panel', async ({
+  test('Should show runtime error log in the execution error group', async ({
     comfyPage
   }) => {
     await openExecutionErrorTab(comfyPage)
@@ -50,6 +50,6 @@ test.describe('Errors tab - Execution errors', { tag: '@ui' }, () => {
       TestIds.dialogs.runtimeErrorPanel
     )
     await expect(runtimePanel).toBeVisible()
-    await expect(runtimePanel).toContainText(/\S/)
+    await expect(runtimePanel).toContainText('Error log')
   })
 })

browser_tests/tests/textareaWidgetFontSize.spec.ts

@@ -0,0 +1,30 @@
+import { expect } from '@playwright/test'
+
+import { comfyPageFixture as test } from '@e2e/fixtures/ComfyPage'
+
+test.describe(
+  'Textarea widget font size',
+  { tag: ['@widget', '@vue-nodes'] },
+  () => {
+    test.beforeEach(async ({ comfyPage }) => {
+      await comfyPage.workflow.loadWorkflow('default')
+    })
+
+    test('applies Comfy.TextareaWidget.FontSize to Vue Nodes 2.0 textarea widget', async ({
+      comfyPage
+    }) => {
+      const textarea = comfyPage.vueNodes.nodes.locator('textarea').first()
+      await expect(textarea).toBeVisible()
+
+      await comfyPage.settings.setSetting('Comfy.TextareaWidget.FontSize', 14)
+      await expect
+        .poll(() => textarea.evaluate((el) => getComputedStyle(el).fontSize))
+        .toBe('14px')
+
+      await comfyPage.settings.setSetting('Comfy.TextareaWidget.FontSize', 22)
+      await expect
+        .poll(() => textarea.evaluate((el) => getComputedStyle(el).fontSize))
+        .toBe('22px')
+    })
+  }
+)

browser_tests/tests/vueNodes/interactions/node/imagePreview.spec.ts

@@ -180,4 +180,44 @@ test.describe('Vue Nodes Batch Image Preview', { tag: '@vue-nodes' }, () => {
       await expect.poll(() => countColumns(node.imageGrid)).toBeLessThan(10)
     }
   )
+
+  wstest(
+    'requests lightweight thumbnail URLs for grid cells',
+    async ({ comfyPage, getWebSocket }) => {
+      const execution = new ExecutionHelper(comfyPage, await getWebSocket())
+
+      await test.step('Add node', async () => {
+        await comfyPage.menu.topbar.newWorkflowButton.click()
+        await comfyPage.nextFrame()
+
+        await comfyPage.searchBoxV2.addNode('Preview Image')
+        const previewImage = comfyPage.vueNodes.getNodeByTitle('Preview Image')
+        await expect(previewImage).toBeVisible()
+      })
+
+      const node = await comfyPage.vueNodes.getFixtureByTitle('Preview Image')
+      const gridImages = node.imageGrid.locator('img')
+
+      await test.step('Inject a multi-image grid', async () => {
+        const images = Array.from({ length: 4 }, (_, index) => ({
+          filename: `grid-${index}.png`,
+          subfolder: '',
+          type: 'output'
+        }))
+        execution.executed('', '1', { images })
+        await expect(gridImages).toHaveCount(4)
+      })
+
+      // FE-741: small on-node grid cells must request a server re-encoded
+      // thumbnail (`preview=webp;75`, `;` may be percent-encoded) instead of
+      // downloading the full-resolution image, while still pointing at the
+      // real `/api/view` URL for that output. Verifies the full path: WS
+      // output -> nodeOutputStore.buildImageUrls -> getGridThumbnailUrl ->
+      // rendered grid `<img>`.
+      for (const cell of await gridImages.all()) {
+        await expect(cell).toHaveAttribute('src', /[?&]preview=webp(%3B|;)75/)
+        await expect(cell).toHaveAttribute('src', /[?&]filename=grid-\d+\.png/)
+      }
+    }
+  )
 })

browser_tests/tests/vueNodes/widgets/combo/comboWidget.spec.ts

@@ -1,10 +1,12 @@
+import type { Locator } from '@playwright/test'
+
 import {
   comfyExpect as expect,
   comfyPageFixture as test
 } from '@e2e/fixtures/ComfyPage'
 import { TestIds } from '@e2e/fixtures/selectors'
 import type { ComfyPage } from '@e2e/fixtures/ComfyPage'
-import type { Locator } from '@playwright/test'
+import { intersection } from '@e2e/fixtures/utils/boundsUtils'
 
 test.describe('Vue Combo Widget', { tag: ['@vue-nodes', '@widget'] }, () => {
   async function openSamplerDropdown(comfyPage: ComfyPage) {
@@ -278,4 +280,31 @@ test.describe('Vue Combo Widget', { tag: ['@vue-nodes', '@widget'] }, () => {
       .getByRole('combobox', { name: 'scheduler', exact: true })
     await expect(schedulerComboAfterReload).toContainText('karras')
   })
+
+  test('Dropdown displays over Selection Toolbox', async ({ comfyPage }) => {
+    await comfyPage.settings.setSetting('Comfy.Canvas.SelectionToolbox', true)
+
+    const nodeName = 'Resize Image/Mask'
+    await comfyPage.searchBoxV2.addNode(nodeName, {
+      position: { x: 200, y: 630 }
+    })
+    const node = await comfyPage.vueNodes.getFixtureByTitle(nodeName)
+    await node.select()
+    await expect(comfyPage.selectionToolbox).toBeVisible()
+
+    const combo = comfyPage.vueNodes.getWidgetByName(nodeName, 'resize_type')
+    await combo.click()
+    const dropdown = comfyPage.page.getByTestId(
+      TestIds.widgets.selectDefaultViewport
+    )
+    await expect(dropdown).toBeVisible()
+
+    const bounds = (await intersection(dropdown, comfyPage.selectionToolbox))!
+    expect(bounds, 'toolbox and dropdown overlap').toBeDefined()
+    const cX = bounds.x + bounds.width / 2
+    const cY = bounds.y + bounds.height / 2
+    const dropdownBounds = (await dropdown.boundingBox())!
+    const position = { x: cX - dropdownBounds.x, y: cY - dropdownBounds.y }
+    await dropdown.click({ position, trial: true })
+  })
 })

packages/design-system/src/css/style.css

@@ -121,6 +121,7 @@
   --comfy-topbar-height: 2.5rem;
   --workflow-tabs-height: 2.375rem;
   --comfy-input-bg: #222;
+  --comfy-textarea-font-size: 10px;
   --input-text: #ddd;
   --descrip-text: #999;
   --drag-text: #ccc;

src/components/builder/AppModeWidgetList.vue

@@ -8,7 +8,6 @@ import { useI18n } from 'vue-i18n'
 import Popover from '@/components/ui/Popover.vue'
 import Button from '@/components/ui/button/Button.vue'
 import { extractVueNodeData } from '@/composables/graph/useGraphNodeManager'
-import { OverlayAppendToKey } from '@/composables/useTransformCompatOverlayProps'
 import type { LGraphNode } from '@/lib/litegraph/src/LGraphNode'
 import { LGraphEventMode } from '@/lib/litegraph/src/types/globalEnums'
 import type { IBaseWidget } from '@/lib/litegraph/src/types/widgets'
@@ -50,7 +49,6 @@ const { onPointerDown } = useAppModeWidgetResizing((widget, config) =>
 )
 
 provide(HideLayoutFieldKey, true)
-provide(OverlayAppendToKey, 'body')
 
 const resolvedInputs = useResolvedSelectedInputs()
 

src/components/graph/SelectionToolbox.vue

@@ -20,6 +20,7 @@
         <InfoButton v-if="canOpenNodeInfo" />
 
         <ColorPickerButton v-if="showColorPicker" />
+        <ArrangeButton v-if="showArrange" />
         <FrameNodes v-if="showFrameNodes" />
         <ConvertToSubgraphButton v-if="showConvertToSubgraph" />
         <ConfigureSubgraph v-if="showSubgraphButtons" />
@@ -49,6 +50,7 @@
 import Panel from 'primevue/panel'
 import { computed, ref } from 'vue'
 
+import ArrangeButton from '@/components/graph/selectionToolbox/ArrangeButton.vue'
 import BypassButton from '@/components/graph/selectionToolbox/BypassButton.vue'
 import ColorPickerButton from '@/components/graph/selectionToolbox/ColorPickerButton.vue'
 import ConfigureSubgraph from '@/components/graph/selectionToolbox/ConfigureSubgraph.vue'
@@ -110,6 +112,7 @@ const {
 
 const showColorPicker = computed(() => hasAnySelection.value)
 const showConvertToSubgraph = computed(() => hasAnySelection.value)
+const showArrange = computed(() => hasMultipleSelection.value)
 const showFrameNodes = computed(() => hasMultipleSelection.value)
 const showSubgraphButtons = computed(() => isSingleSubgraph.value)
 
@@ -128,6 +131,7 @@ const showAnyPrimaryActions = computed(
   () =>
     showColorPicker.value ||
     showConvertToSubgraph.value ||
+    showArrange.value ||
     showFrameNodes.value ||
     showSubgraphButtons.value
 )

src/components/graph/selectionToolbox/ArrangeButton.vue

@@ -0,0 +1,115 @@
+<template>
+  <PopoverRoot v-model:open="isOpen">
+    <PopoverTrigger as-child>
+      <Button
+        v-tooltip.top="{ value: t('g.arrange'), showDelay: 1000 }"
+        variant="muted-textonly"
+        :aria-label="t('g.arrange')"
+      >
+        <div class="flex items-center gap-1 px-0">
+          <i class="icon-[lucide--layout-grid]" />
+          <i class="icon-[lucide--chevron-down]" />
+        </div>
+      </Button>
+    </PopoverTrigger>
+    <PopoverPortal>
+      <PopoverContent
+        side="bottom"
+        :side-offset="5"
+        :collision-padding="10"
+        class="data-[state=open]:data-[side=top]:animate-slideDownAndFade data-[state=open]:data-[side=right]:animate-slideLeftAndFade data-[state=open]:data-[side=bottom]:animate-slideUpAndFade data-[state=open]:data-[side=left]:animate-slideRightAndFade z-1700 rounded-lg border border-border-subtle bg-base-background p-2 shadow-sm will-change-[transform,opacity]"
+      >
+        <div
+          v-if="activeLayout"
+          class="flex w-32 flex-row items-center px-2 py-1"
+        >
+          <Slider
+            :model-value="[gap]"
+            :min="MIN_ARRANGE_GAP"
+            :max="MAX_ARRANGE_GAP"
+            :step="1"
+            :aria-label="t('g.arrangeSpacing')"
+            @update:model-value="onSliderUpdate"
+            @value-commit="onSliderCommit"
+          />
+        </div>
+        <div v-else class="flex flex-row gap-1">
+          <Button
+            v-tooltip.top="{
+              value: t('g.arrangeVertically'),
+              showDelay: 1000
+            }"
+            variant="muted-textonly"
+            :aria-label="t('g.arrangeVertically')"
+            @click="start('vertical')"
+          >
+            <i class="icon-[lucide--stretch-horizontal]" />
+          </Button>
+          <Button
+            v-tooltip.top="{
+              value: t('g.arrangeHorizontally'),
+              showDelay: 1000
+            }"
+            variant="muted-textonly"
+            :aria-label="t('g.arrangeHorizontally')"
+            @click="start('horizontal')"
+          >
+            <i class="icon-[lucide--stretch-vertical]" />
+          </Button>
+          <Button
+            v-tooltip.top="{ value: t('g.arrangeAsGrid'), showDelay: 1000 }"
+            variant="muted-textonly"
+            :aria-label="t('g.arrangeAsGrid')"
+            @click="start('grid')"
+          >
+            <i class="icon-[lucide--grid-3x3]" />
+          </Button>
+        </div>
+        <PopoverArrow class="fill-base-background stroke-border-subtle" />
+      </PopoverContent>
+    </PopoverPortal>
+  </PopoverRoot>
+</template>
+
+<script setup lang="ts">
+import {
+  PopoverArrow,
+  PopoverContent,
+  PopoverPortal,
+  PopoverRoot,
+  PopoverTrigger
+} from 'reka-ui'
+import { ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+import Button from '@/components/ui/button/Button.vue'
+import Slider from '@/components/ui/slider/Slider.vue'
+import {
+  MAX_ARRANGE_GAP,
+  MIN_ARRANGE_GAP
+} from '@/composables/graph/useArrangeNodes'
+import { useArrangeSession } from '@/composables/graph/useArrangeSession'
+
+const { t } = useI18n()
+const { activeLayout, gap, start, previewGap, commitGap, reset } =
+  useArrangeSession()
+
+const isOpen = ref(false)
+
+watch(isOpen, (open) => {
+  if (!open) reset()
+})
+
+const firstValue = (value: number[] | undefined): number | undefined =>
+  value?.[0]
+
+const onSliderUpdate = (value: number[] | undefined) => {
+  const next = firstValue(value)
+  if (next !== undefined) previewGap(next)
+}
+
+const onSliderCommit = (value: number[]) => {
+  const next = firstValue(value)
+  if (next !== undefined) commitGap(next)
+}
+</script>

src/components/rightSidePanel/errors/ErrorNodeCard.stories.ts

@@ -2,20 +2,12 @@ import type { Meta, StoryObj } from '@storybook/vue3-vite'
 import ErrorNodeCard from './ErrorNodeCard.vue'
 import type { ErrorCardData } from './types'
 
-/**
- * ErrorNodeCard displays a single error card inside the error tab.
- * It shows the node header (ID badge, title, action buttons)
- * and the list of error items (message, traceback, copy button).
- */
 const meta: Meta<typeof ErrorNodeCard> = {
   title: 'RightSidePanel/Errors/ErrorNodeCard',
   component: ErrorNodeCard,
   parameters: {
     layout: 'centered'
   },
-  argTypes: {
-    showNodeIdBadge: { control: 'boolean' }
-  },
   decorators: [
     (story) => ({
       components: { story },
@@ -105,58 +97,36 @@ const promptOnlyCard: ErrorCardData = {
   ]
 }
 
-/** Single validation error with node ID badge visible */
-export const WithNodeIdBadge: Story = {
+export const SingleValidationError: Story = {
   args: {
-    card: singleErrorCard,
-    showNodeIdBadge: true
-  }
-}
-
-/** Single validation error without node ID badge */
-export const WithoutNodeIdBadge: Story = {
-  args: {
-    card: singleErrorCard,
-    showNodeIdBadge: false
+    card: singleErrorCard
   }
 }
 
 /** Subgraph node error — shows "Enter subgraph" button */
 export const WithEnterSubgraphButton: Story = {
   args: {
-    card: subgraphErrorCard,
-    showNodeIdBadge: true
-  }
-}
-
-/** Regular node error — no "Enter subgraph" button */
-export const WithoutEnterSubgraphButton: Story = {
-  args: {
-    card: singleErrorCard,
-    showNodeIdBadge: true
+    card: subgraphErrorCard
   }
 }
 
 /** Multiple validation errors on one node */
 export const MultipleErrors: Story = {
   args: {
-    card: multipleErrorsCard,
-    showNodeIdBadge: true
+    card: multipleErrorsCard
   }
 }
 
 /** Runtime execution error with full traceback */
 export const RuntimeError: Story = {
   args: {
-    card: runtimeErrorCard,
-    showNodeIdBadge: true
+    card: runtimeErrorCard
   }
 }
 
 /** Prompt-level error (no node header) */
 export const PromptError: Story = {
   args: {
-    card: promptOnlyCard,
-    showNodeIdBadge: false
+    card: promptOnlyCard
   }
 }

src/components/rightSidePanel/errors/ErrorNodeCard.test.ts

@@ -71,6 +71,7 @@ describe('ErrorNodeCard.vue', () => {
         en: {
           g: {
             copy: 'Copy',
+            details: 'Details',
             findIssues: 'Find Issues',
             findOnGithub: 'Find on GitHub',
             getHelpAction: 'Get Help'
@@ -78,6 +79,7 @@ describe('ErrorNodeCard.vue', () => {
           rightSidePanel: {
             locateNode: 'Locate Node',
             enterSubgraph: 'Enter Subgraph',
+            errorLog: 'Error log',
             findOnGithubTooltip: 'Search GitHub issues for related problems',
             getHelpTooltip:
               'Report this error and we\u0027ll help you resolve it'
@@ -96,8 +98,9 @@ describe('ErrorNodeCard.vue', () => {
   ) {
     const user = userEvent.setup()
     const onCopyToClipboard = vi.fn()
+    const onLocateNode = vi.fn()
     render(ErrorNodeCard, {
-      props: { card, onCopyToClipboard },
+      props: { card, onCopyToClipboard, onLocateNode },
       global: {
         plugins: [
           PrimeVue,
@@ -131,14 +134,20 @@ describe('ErrorNodeCard.vue', () => {
           })
         ],
         stubs: {
+          TransitionCollapse: { template: '<div><slot /></div>' },
           Button: {
-            template:
-              '<button :aria-label="$attrs[\'aria-label\']"><slot /></button>'
+            template: '<button v-bind="$attrs"><slot /></button>'
           }
         }
       }
     })
-    return { user, onCopyToClipboard }
+    return { user, onCopyToClipboard, onLocateNode }
+  }
+
+  async function toggleRuntimeDetails(
+    user: ReturnType<typeof userEvent.setup>
+  ) {
+    await user.click(screen.getByRole('button', { name: /Details/ }))
   }
 
   let cardIdCounter = 0
@@ -160,40 +169,67 @@ describe('ErrorNodeCard.vue', () => {
     }
   }
 
-  function makeValidationErrorCard(): ErrorCardData {
+  function makePromptErrorCard(): ErrorCardData {
     return {
-      id: `node-${++cardIdCounter}`,
-      title: 'CLIPTextEncode',
-      nodeId: '6',
-      nodeTitle: 'CLIP Text Encode',
+      id: '__prompt__',
+      title: 'Prompt has no outputs',
       errors: [
         {
-          message: 'Required input is missing',
-          details: 'Input: text'
+          message: 'Server Error: No outputs',
+          details: 'Error details',
+          displayMessage:
+            'The workflow does not contain any output nodes to produce a result.'
         }
       ]
     }
   }
 
-  it('displays enriched report for runtime errors on mount', async () => {
+  it('shows runtime details by default and can collapse them', async () => {
     const reportText =
       '# ComfyUI Error Report\n## System Information\n- OS: Linux'
     mockGenerateErrorReport.mockReturnValue(reportText)
 
-    renderCard(makeRuntimeErrorCard())
+    const { user } = renderCard(makeRuntimeErrorCard())
 
     await waitFor(() => {
-      expect(screen.getByText(/ComfyUI Error Report/)).toBeInTheDocument()
+      expect(mockGenerateErrorReport).toHaveBeenCalledOnce()
     })
+    expect(screen.queryByRole('listitem')).not.toBeInTheDocument()
+    expect(screen.getByText('Error log')).toBeInTheDocument()
+    const detailsButton = screen.getByRole('button', { name: /Details/ })
+    const detailsRegion = screen.getByRole('region', { name: 'Error log' })
+    expect(detailsButton).toHaveAttribute(
+      'aria-controls',
+      detailsRegion.getAttribute('id')
+    )
+    expect(screen.getByText(/ComfyUI Error Report/)).toBeInTheDocument()
     expect(screen.getByText(/System Information/)).toBeInTheDocument()
     expect(screen.getByText(/OS: Linux/)).toBeInTheDocument()
+    expect(
+      screen.getByRole('button', { name: /Find on GitHub/ })
+    ).toBeInTheDocument()
+
+    await toggleRuntimeDetails(user)
+
+    expect(screen.queryByText(/ComfyUI Error Report/)).not.toBeInTheDocument()
+    expect(
+      screen.queryByRole('button', { name: /Find on GitHub/ })
+    ).not.toBeInTheDocument()
+  })
+
+  it('locates the node when the runtime node title is clicked', async () => {
+    const { user, onLocateNode } = renderCard(makeRuntimeErrorCard())
+
+    await user.click(screen.getByRole('button', { name: 'KSampler' }))
+
+    expect(onLocateNode).toHaveBeenCalledWith('10')
   })
 
   it('does not generate report for non-runtime errors', async () => {
-    renderCard(makeValidationErrorCard())
+    renderCard(makePromptErrorCard())
 
     await waitFor(() => {
-      expect(screen.getByText('Input: text')).toBeInTheDocument()
+      expect(screen.getByText('Error details')).toBeInTheDocument()
     })
 
     expect(mockGetLogs).not.toHaveBeenCalled()
@@ -201,15 +237,15 @@ describe('ErrorNodeCard.vue', () => {
   })
 
   it('displays original details for non-runtime errors', async () => {
-    renderCard(makeValidationErrorCard())
+    renderCard(makePromptErrorCard())
 
     await waitFor(() => {
-      expect(screen.getByText('Input: text')).toBeInTheDocument()
+      expect(screen.getByText('Error details')).toBeInTheDocument()
     })
     expect(screen.queryByText(/ComfyUI Error Report/)).not.toBeInTheDocument()
   })
 
-  it('displays catalog-resolved copy when available', async () => {
+  it('hides grouped catalog copy and shows the item label as a list item', async () => {
     renderCard({
       id: `node-${++cardIdCounter}`,
       title: 'KSampler',
@@ -229,17 +265,17 @@ describe('ErrorNodeCard.vue', () => {
     })
 
     await waitFor(() => {
-      expect(screen.getByText('Missing connection')).toBeInTheDocument()
+      expect(screen.getByText('KSampler - model')).toBeInTheDocument()
     })
+    expect(screen.getByRole('listitem')).toHaveTextContent('KSampler - model')
+    expect(screen.queryByText('Missing connection')).not.toBeInTheDocument()
     expect(
-      screen.getByText('Required input slots have no connection feeding them.')
-    ).toBeInTheDocument()
+      screen.queryByText(
+        'Required input slots have no connection feeding them.'
+      )
+    ).not.toBeInTheDocument()
     expect(
-      screen.getByText('KSampler is missing a required input: model')
-    ).toBeInTheDocument()
-    expect(screen.queryByText('KSampler - model')).not.toBeInTheDocument()
-    expect(
-      screen.queryByText('Required input is missing')
+      screen.queryByText('KSampler is missing a required input: model')
     ).not.toBeInTheDocument()
   })
 
@@ -250,8 +286,9 @@ describe('ErrorNodeCard.vue', () => {
     const { user, onCopyToClipboard } = renderCard(makeRuntimeErrorCard())
 
     await waitFor(() => {
-      expect(screen.getByText(/Full Report Content/)).toBeInTheDocument()
+      expect(mockGenerateErrorReport).toHaveBeenCalledOnce()
     })
+    expect(screen.getByText(/Full Report Content/)).toBeInTheDocument()
 
     await user.click(screen.getByRole('button', { name: /Copy/ }))
 
@@ -261,21 +298,6 @@ describe('ErrorNodeCard.vue', () => {
     )
   })
 
-  it('copies original details when copy button is clicked for validation error', async () => {
-    const { user, onCopyToClipboard } = renderCard(makeValidationErrorCard())
-
-    await waitFor(() => {
-      expect(screen.getByText('Input: text')).toBeInTheDocument()
-    })
-
-    await user.click(screen.getByRole('button', { name: /Copy/ }))
-
-    expect(onCopyToClipboard).toHaveBeenCalledTimes(1)
-    expect(onCopyToClipboard.mock.calls[0][0]).toBe(
-      'Required input is missing\n\nInput: text'
-    )
-  })
-
   it('generates report with fallback logs when getLogs fails', async () => {
     mockGetLogs.mockRejectedValue(new Error('Network error'))
 
@@ -300,8 +322,9 @@ describe('ErrorNodeCard.vue', () => {
     renderCard(makeRuntimeErrorCard())
 
     await waitFor(() => {
-      expect(screen.getByText(/Traceback line 1/)).toBeInTheDocument()
+      expect(mockGenerateErrorReport).toHaveBeenCalledOnce()
     })
+    expect(screen.getByText(/Traceback line 1/)).toBeInTheDocument()
   })
 
   it('opens GitHub issues search when Find Issue button is clicked', async () => {
@@ -310,9 +333,7 @@ describe('ErrorNodeCard.vue', () => {
     const { user } = renderCard(makeRuntimeErrorCard())
 
     await waitFor(() => {
-      expect(
-        screen.getByRole('button', { name: /Find on GitHub/ })
-      ).toBeInTheDocument()
+      expect(mockGenerateErrorReport).toHaveBeenCalledOnce()
     })
 
     await user.click(screen.getByRole('button', { name: /Find on GitHub/ }))
@@ -335,9 +356,7 @@ describe('ErrorNodeCard.vue', () => {
     const { user } = renderCard(makeRuntimeErrorCard())
 
     await waitFor(() => {
-      expect(
-        screen.getByRole('button', { name: /Get Help/ })
-      ).toBeInTheDocument()
+      expect(mockGenerateErrorReport).toHaveBeenCalledOnce()
     })
 
     await user.click(screen.getByRole('button', { name: /Get Help/ }))
@@ -398,9 +417,7 @@ describe('ErrorNodeCard.vue', () => {
       }
     })
 
-    await waitFor(() => {
-      expect(screen.getByText(/Traceback line 1/)).toBeInTheDocument()
-    })
+    expect(screen.getByText(/Traceback line 1/)).toBeInTheDocument()
 
     expect(mockGenerateErrorReport).not.toHaveBeenCalled()
   })

src/components/rightSidePanel/errors/ErrorNodeCard.vue

@@ -1,18 +1,19 @@
 <template>
   <div class="flex min-h-0 flex-1 flex-col overflow-hidden">
-    <!-- Card Header -->
     <div
       v-if="card.nodeId && !compact"
       class="flex flex-wrap items-center gap-2 py-2"
     >
-      <span
-        v-if="showNodeIdBadge"
-        class="shrink-0 rounded-md bg-secondary-background-selected px-2 py-0.5 font-mono text-xs font-bold text-muted-foreground"
+      <button
+        v-if="hasRuntimeError && (card.nodeTitle || card.title)"
+        type="button"
+        class="m-0 min-w-0 flex-1 cursor-pointer appearance-none truncate border-0 bg-transparent p-0 text-left text-sm font-medium text-muted-foreground outline-none hover:text-base-foreground focus:outline-none focus-visible:underline focus-visible:ring-0 focus-visible:outline-none"
+        @click="handleLocateNode"
       >
-        #{{ card.nodeId }}
-      </span>
+        {{ card.nodeTitle || card.title }}
+      </button>
       <span
-        v-if="card.nodeTitle || card.title"
+        v-else-if="card.nodeTitle || card.title"
         class="flex-1 truncate text-sm font-medium text-muted-foreground"
       >
         {{ card.nodeTitle || card.title }}
@@ -27,6 +28,24 @@
         >
           {{ t('rightSidePanel.enterSubgraph') }}
         </Button>
+        <Button
+          v-if="hasRuntimeError"
+          variant="textonly"
+          size="icon-sm"
+          :class="
+            cn(
+              'size-8 shrink-0 text-muted-foreground hover:text-base-foreground',
+              runtimeDetailsExpanded &&
+                'bg-secondary-background-selected text-base-foreground hover:bg-secondary-background-selected'
+            )
+          "
+          :aria-label="t('g.details')"
+          :aria-controls="runtimeDetailsControlIds || undefined"
+          :aria-expanded="runtimeDetailsExpanded"
+          @click.stop="toggleRuntimeDetails"
+        >
+          <i class="icon-[lucide--monitor-x] size-4" />
+        </Button>
         <Button
           variant="textonly"
           size="icon-sm"
@@ -39,120 +58,143 @@
       </div>
     </div>
 
-    <!-- Multiple Errors within one Card -->
     <div
       class="flex min-h-0 flex-1 flex-col space-y-4 divide-y divide-interface-stroke/20"
     >
-      <!-- Card Content -->
       <div
         v-for="(error, idx) in card.errors"
         :key="idx"
-        :class="
-          cn(
-            'flex min-h-0 flex-col gap-3',
-            fullHeight && error.isRuntimeError && 'flex-1'
-          )
-        "
+        class="flex min-h-0 flex-col gap-3"
       >
-        <!-- Human-friendly category/title when resolved by the error catalog. -->
         <p
-          v-if="error.displayTitle"
-          class="m-0 px-0.5 text-sm font-semibold text-destructive-background-hover"
-        >
-          {{ error.displayTitle }}
-        </p>
-
-        <!-- Error Message -->
-        <p
-          v-if="getDisplayMessage(error)"
+          v-if="getInlineMessage(error)"
           class="m-0 max-h-[4lh] overflow-y-auto px-0.5 text-sm/relaxed wrap-break-word whitespace-pre-wrap"
         >
-          {{ getDisplayMessage(error) }}
+          {{ getInlineMessage(error) }}
         </p>
 
-        <!-- Traceback / Details (enriched with full report for runtime errors) -->
+        <ul
+          v-if="getInlineItemLabel(error)"
+          class="m-0 list-disc space-y-1 pl-5 text-sm/relaxed text-muted-foreground marker:text-muted-foreground"
+        >
+          <li class="min-w-0 wrap-break-word">
+            <button
+              v-if="card.nodeId"
+              type="button"
+              class="m-0 inline max-w-full cursor-pointer appearance-none border-0 bg-transparent p-0 text-left text-sm/relaxed font-normal wrap-break-word text-muted-foreground outline-none hover:text-base-foreground focus:outline-none focus-visible:underline focus-visible:ring-0 focus-visible:outline-none"
+              @click="handleLocateNode"
+            >
+              {{ getInlineItemLabel(error) }}
+            </button>
+            <span v-else>
+              {{ getInlineItemLabel(error) }}
+            </span>
+          </li>
+        </ul>
+
         <div
-          v-if="displayedDetailsMap[idx]"
+          v-if="!error.isRuntimeError && getInlineDetails(error, idx)"
           :class="
             cn(
-              'overflow-y-auto rounded-lg border border-interface-stroke/30 bg-secondary-background-hover p-2.5',
-              error.isRuntimeError
-                ? fullHeight
-                  ? 'min-h-0 flex-1'
-                  : 'max-h-[15lh]'
-                : 'max-h-[6lh]'
+              'overflow-y-auto rounded-lg border border-interface-stroke/30 bg-secondary-background p-2.5',
+              'max-h-[6lh]'
             )
           "
         >
           <p
             class="m-0 font-mono text-xs/relaxed wrap-break-word whitespace-pre-wrap text-muted-foreground"
           >
-            {{ displayedDetailsMap[idx] }}
+            {{ getInlineDetails(error, idx) }}
           </p>
         </div>
 
-        <div class="flex flex-col gap-2">
-          <div class="flex gap-2">
-            <Button
-              v-tooltip.top="t('rightSidePanel.findOnGithubTooltip')"
-              variant="secondary"
-              size="sm"
-              class="h-8 w-2/3 justify-center gap-1 rounded-lg text-xs"
-              data-testid="error-card-find-on-github"
-              @click="handleCheckGithub(error)"
-            >
-              {{ t('g.findOnGithub') }}
-              <i class="icon-[lucide--github] size-3.5" />
-            </Button>
-            <Button
-              variant="secondary"
-              size="sm"
-              class="h-8 w-1/3 justify-center gap-1 rounded-lg text-xs"
-              data-testid="error-card-copy"
-              @click="handleCopyError(idx)"
-            >
-              {{ t('g.copy') }}
-              <i class="icon-[lucide--copy] size-3.5" />
-            </Button>
-          </div>
-          <Button
-            v-tooltip.top="t('rightSidePanel.getHelpTooltip')"
-            variant="secondary"
-            size="sm"
-            class="h-8 w-full justify-center gap-1 rounded-lg text-xs"
-            @click="handleGetHelp"
+        <TransitionCollapse>
+          <div
+            v-if="error.isRuntimeError && isRuntimeDisclosureExpanded"
+            :id="getRuntimeDetailsId(idx)"
+            role="region"
+            data-testid="runtime-error-panel"
+            :aria-label="t('rightSidePanel.errorLog')"
+            class="flex min-h-0 flex-col gap-3"
           >
-            {{ t('g.getHelpAction') }}
-            <i class="icon-[lucide--external-link] size-3.5" />
-          </Button>
-        </div>
+            <div
+              v-if="getInlineDetails(error, idx)"
+              class="overflow-hidden rounded-lg border border-interface-stroke/30 bg-secondary-background"
+            >
+              <div
+                class="flex items-center justify-between gap-2 px-3 pt-3 pb-2"
+              >
+                <span
+                  class="text-xs font-semibold tracking-wide text-base-foreground uppercase"
+                >
+                  {{ t('rightSidePanel.errorLog') }}
+                </span>
+                <Button
+                  variant="textonly"
+                  size="icon-sm"
+                  class="size-7 shrink-0 text-muted-foreground hover:text-base-foreground"
+                  :aria-label="t('g.copy')"
+                  data-testid="error-card-copy"
+                  @click="handleCopyError(idx)"
+                >
+                  <i class="icon-[lucide--copy] size-4" />
+                </Button>
+              </div>
+              <div class="max-h-[15lh] overflow-y-auto px-3 pb-3">
+                <p
+                  class="m-0 font-mono text-xs/relaxed wrap-break-word whitespace-pre-wrap text-muted-foreground"
+                >
+                  {{ getInlineDetails(error, idx) }}
+                </p>
+              </div>
+
+              <div class="mx-3 mt-1 h-px bg-base-foreground/20" />
+              <div class="mx-3 flex items-center justify-between gap-2 py-2">
+                <Button
+                  v-tooltip.top="t('rightSidePanel.getHelpTooltip')"
+                  variant="textonly"
+                  size="sm"
+                  class="h-8 justify-start gap-1 rounded-lg px-0 text-sm hover:bg-transparent hover:text-base-foreground"
+                  @click="handleGetHelp"
+                >
+                  <i class="icon-[lucide--external-link] size-3.5" />
+                  {{ t('g.getHelpAction') }}
+                </Button>
+                <Button
+                  v-tooltip.top="t('rightSidePanel.findOnGithubTooltip')"
+                  variant="textonly"
+                  size="sm"
+                  class="h-8 justify-end gap-1 rounded-lg px-0 text-sm hover:bg-transparent hover:text-base-foreground"
+                  data-testid="error-card-find-on-github"
+                  @click="handleCheckGithub(error)"
+                >
+                  <i class="icon-[lucide--github] size-3.5" />
+                  {{ t('g.findOnGithub') }}
+                </Button>
+              </div>
+            </div>
+          </div>
+        </TransitionCollapse>
       </div>
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
+import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import Button from '@/components/ui/button/Button.vue'
 import { cn } from '@comfyorg/tailwind-utils'
+import TransitionCollapse from '../layout/TransitionCollapse.vue'
 
 import type { ErrorCardData, ErrorItem } from './types'
 import { useErrorActions } from './useErrorActions'
 import { useErrorReport } from './useErrorReport'
 
-const {
-  card,
-  showNodeIdBadge = false,
-  compact = false,
-  fullHeight = false
-} = defineProps<{
+const { card, compact = false } = defineProps<{
   card: ErrorCardData
-  showNodeIdBadge?: boolean
-  /** Hide card header and error message (used in single-node selection mode) */
   compact?: boolean
-  /** Allow runtime error details to fill available height (used in dedicated panel) */
-  fullHeight?: boolean
 }>()
 
 const emit = defineEmits<{
@@ -164,6 +206,23 @@ const emit = defineEmits<{
 const { t } = useI18n()
 const { displayedDetailsMap } = useErrorReport(() => card)
 const { findOnGitHub, contactSupport: handleGetHelp } = useErrorActions()
+const runtimeDetailsExpanded = ref(true)
+const hasRuntimeError = computed(() =>
+  card.errors.some((error) => error.isRuntimeError)
+)
+const isRuntimeDisclosureExpanded = computed(
+  () => compact || runtimeDetailsExpanded.value
+)
+const runtimeDetailsControlIds = computed(() =>
+  card.errors
+    .map((error, idx) => (error.isRuntimeError ? getRuntimeDetailsId(idx) : ''))
+    .filter(Boolean)
+    .join(' ')
+)
+
+function toggleRuntimeDetails() {
+  runtimeDetailsExpanded.value = !runtimeDetailsExpanded.value
+}
 
 function handleLocateNode() {
   if (card.nodeId) {
@@ -179,7 +238,7 @@ function handleEnterSubgraph() {
 
 function handleCopyError(idx: number) {
   const details = displayedDetailsMap.value[idx]
-  const message = getDisplayMessage(card.errors[idx])
+  const message = getCopyMessage(card.errors[idx])
   emit('copyToClipboard', [message, details].filter(Boolean).join('\n\n'))
 }
 
@@ -187,7 +246,26 @@ function handleCheckGithub(error: ErrorItem) {
   findOnGitHub(error.message)
 }
 
-function getDisplayMessage(error: ErrorItem | undefined) {
+function getCopyMessage(error: ErrorItem | undefined) {
   return error?.displayMessage ?? error?.message
 }
+
+function getInlineMessage(error: ErrorItem | undefined) {
+  if (!error || error.displayMessage) return undefined
+  return error.message
+}
+
+function getInlineItemLabel(error: ErrorItem | undefined) {
+  if (!error || error.isRuntimeError) return undefined
+  return error.displayItemLabel
+}
+
+function getInlineDetails(error: ErrorItem | undefined, idx: number) {
+  if (getInlineItemLabel(error)) return undefined
+  return displayedDetailsMap.value[idx]
+}
+
+function getRuntimeDetailsId(idx: number) {
+  return `${card.id}-runtime-details-${idx}`
+}
 </script>

src/components/rightSidePanel/errors/TabErrors.test.ts

@@ -1,15 +1,18 @@
 import { createTestingPinia } from '@pinia/testing'
-import { render, screen } from '@testing-library/vue'
+import { render, screen, within } from '@testing-library/vue'
 import userEvent from '@testing-library/user-event'
 import PrimeVue from 'primevue/config'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 import { createI18n } from 'vue-i18n'
 import TabErrors from './TabErrors.vue'
 import { useMissingModelStore } from '@/platform/missingModel/missingModelStore'
-import type { MissingModelCandidate } from '@/platform/missingModel/types'
 import type { MissingMediaCandidate } from '@/platform/missingMedia/types'
+import type { MissingModelCandidate } from '@/platform/missingModel/types'
 import type { MissingNodeType } from '@/types/comfy'
 
+const mockFocusNode = vi.hoisted(() => vi.fn())
+const mockEnterSubgraph = vi.hoisted(() => vi.fn())
+
 vi.mock('@/scripts/app', () => ({
   app: {
     rootGraph: {
@@ -38,6 +41,13 @@ vi.mock('@/services/litegraphService', () => ({
   }))
 }))
 
+vi.mock('@/composables/canvas/useFocusNode', () => ({
+  useFocusNode: vi.fn(() => ({
+    focusNode: mockFocusNode,
+    enterSubgraph: mockEnterSubgraph
+  }))
+}))
+
 vi.mock('@/platform/missingModel/missingModelDownload', () => ({
   downloadModel: vi.fn(),
   fetchModelMetadata: vi.fn().mockResolvedValue({
@@ -52,6 +62,7 @@ describe('TabErrors.vue', () => {
   let i18n: ReturnType<typeof createI18n>
 
   beforeEach(() => {
+    vi.clearAllMocks()
     i18n = createI18n({
       legacy: false,
       locale: 'en',
@@ -59,11 +70,22 @@ describe('TabErrors.vue', () => {
         en: {
           g: {
             workflow: 'Workflow',
-            copy: 'Copy'
+            copy: 'Copy',
+            details: 'Details',
+            findOnGithub: 'Find on GitHub',
+            getHelpAction: 'Get Help'
           },
           rightSidePanel: {
             noErrors: 'No errors',
             noneSearchDesc: 'No results found',
+            errorHelp: 'Error help',
+            errorLog: 'Error log',
+            findOnGithubTooltip: 'Search GitHub issues',
+            getHelpTooltip: 'Get help',
+            info: 'Info',
+            infoFor: 'Info for {item}',
+            locateNode: 'Locate node',
+            locateNodeFor: 'Locate {item}',
             missingModels: {
               missingModelsTitle: 'Missing Models',
               downloadAll: 'Download all',
@@ -144,29 +166,111 @@ describe('TabErrors.vue', () => {
     expect(screen.queryByText('Error details')).not.toBeInTheDocument()
   })
 
-  it('renders node validation errors grouped by class_type', async () => {
+  it('renders node validation errors grouped by catalog copy', async () => {
     const { getNodeByExecutionId } = await import('@/utils/graphTraversalUtil')
-    vi.mocked(getNodeByExecutionId).mockReturnValue({
-      title: 'CLIP Text Encode'
-    } as ReturnType<typeof getNodeByExecutionId>)
+    vi.mocked(getNodeByExecutionId).mockImplementation((_, nodeId) => {
+      const titles: Record<string, string> = {
+        '1': 'KSampler',
+        '2': 'CLIP Text Encode'
+      }
+      return {
+        title: titles[String(nodeId)] ?? ''
+      } as ReturnType<typeof getNodeByExecutionId>
+    })
 
-    renderComponent({
+    const { user } = renderComponent({
       executionError: {
         lastNodeErrors: {
-          '6': {
+          '2': {
             class_type: 'CLIPTextEncode',
             errors: [
-              { message: 'Required input is missing', details: 'Input: text' }
+              {
+                type: 'required_input_missing',
+                message: 'Required input is missing',
+                details: 'Input: clip',
+                extra_info: {
+                  input_name: 'clip'
+                }
+              }
+            ]
+          },
+          '1': {
+            class_type: 'KSampler',
+            errors: [
+              {
+                type: 'required_input_missing',
+                message: 'Required input is missing',
+                details: 'Input: positive',
+                extra_info: {
+                  input_name: 'positive'
+                }
+              },
+              {
+                type: 'required_input_missing',
+                message: 'Required input is missing',
+                details: 'Input: model',
+                extra_info: {
+                  input_name: 'model'
+                }
+              }
             ]
           }
         }
       }
     })
 
-    expect(screen.getByText('CLIPTextEncode')).toBeInTheDocument()
-    expect(screen.getByText('#6')).toBeInTheDocument()
-    expect(screen.getByText('CLIP Text Encode')).toBeInTheDocument()
-    expect(screen.getByText('Required input is missing')).toBeInTheDocument()
+    expect(screen.getByText('Missing connection')).toBeInTheDocument()
+    expect(screen.getByText('(3)')).toBeInTheDocument()
+    expect(
+      screen.getAllByText(
+        'Required input slots have no connection feeding them.'
+      )
+    ).toHaveLength(1)
+    expect(screen.queryByText('#1')).not.toBeInTheDocument()
+    expect(screen.queryByText('#2')).not.toBeInTheDocument()
+    expect(screen.queryByText('KSampler')).not.toBeInTheDocument()
+    expect(screen.queryByText('CLIP Text Encode')).not.toBeInTheDocument()
+
+    const itemRows = screen.getAllByRole('listitem')
+    expect(itemRows).toHaveLength(3)
+    expect(itemRows[0]).toHaveTextContent('KSampler - model')
+    expect(itemRows[1]).toHaveTextContent('KSampler - positive')
+    expect(itemRows[2]).toHaveTextContent('CLIP Text Encode - clip')
+
+    const infoButton = within(itemRows[1]).getByRole('button', {
+      name: 'Info for KSampler - positive'
+    })
+
+    await user.click(infoButton)
+
+    const itemDetail = screen.getByText(
+      'KSampler is missing a required input: positive'
+    )
+    expect(infoButton).toHaveAttribute(
+      'aria-controls',
+      itemDetail.getAttribute('id')
+    )
+
+    const labelLocateButton = within(itemRows[1]).getByRole('button', {
+      name: 'KSampler - positive'
+    })
+
+    await user.click(labelLocateButton)
+    expect(mockFocusNode.mock.calls.at(-1)?.[0]).toBe('1')
+
+    const iconLocateButton = within(itemRows[2]).getByRole('button', {
+      name: 'Locate CLIP Text Encode - clip'
+    })
+
+    await user.click(iconLocateButton)
+    expect(mockFocusNode.mock.calls.at(-1)?.[0]).toBe('2')
+
+    expect(
+      screen.queryByText('Required input is missing')
+    ).not.toBeInTheDocument()
+    expect(screen.queryByText('Input: model')).not.toBeInTheDocument()
+    expect(screen.queryByText('Input: positive')).not.toBeInTheDocument()
+    expect(screen.queryByText('Input: clip')).not.toBeInTheDocument()
   })
 
   it('renders runtime execution errors from WebSocket', async () => {
@@ -175,7 +279,7 @@ describe('TabErrors.vue', () => {
       title: 'KSampler'
     } as ReturnType<typeof getNodeByExecutionId>)
 
-    renderComponent({
+    const { user } = renderComponent({
       executionError: {
         lastExecutionError: {
           prompt_id: 'abc',
@@ -190,12 +294,16 @@ describe('TabErrors.vue', () => {
     })
 
     expect(screen.getAllByText('KSampler').length).toBeGreaterThanOrEqual(1)
-    expect(screen.getByText('#10')).toBeInTheDocument()
     expect(screen.getByText('Execution failed')).toBeInTheDocument()
     expect(
       screen.getByText('Node threw an error during execution.')
     ).toBeInTheDocument()
+    expect(screen.getByText('Error log')).toBeInTheDocument()
     expect(screen.getByText(/Line 1/)).toBeInTheDocument()
+
+    await user.click(screen.getByRole('button', { name: 'Details' }))
+
+    expect(screen.queryByText(/Line 1/)).not.toBeInTheDocument()
   })
 
   it('filters errors based on search query', async () => {
@@ -230,7 +338,7 @@ describe('TabErrors.vue', () => {
     expect(screen.queryByText('KSampler')).not.toBeInTheDocument()
   })
 
-  it('calls copyToClipboard when copy button is clicked', async () => {
+  it('calls copyToClipboard when a runtime error copy button is clicked', async () => {
     const { useCopyToClipboard } =
       await import('@/composables/useCopyToClipboard')
     const mockCopy = vi.fn()
@@ -238,21 +346,26 @@ describe('TabErrors.vue', () => {
 
     const { user } = renderComponent({
       executionError: {
-        lastNodeErrors: {
-          '1': {
-            class_type: 'TestNode',
-            errors: [{ message: 'Test message', details: 'Test details' }]
-          }
+        lastExecutionError: {
+          prompt_id: 'abc',
+          node_id: '1',
+          node_type: 'TestNode',
+          exception_message: 'Test message',
+          exception_type: 'RuntimeError',
+          traceback: ['Test details'],
+          timestamp: Date.now()
         }
       }
     })
 
     await user.click(screen.getByTestId('error-card-copy'))
 
-    expect(mockCopy).toHaveBeenCalledWith('Test message\n\nTest details')
+    expect(mockCopy).toHaveBeenCalledWith(
+      'Node threw an error during execution.\n\nTest details'
+    )
   })
 
-  it('renders single runtime error outside accordion in full-height panel', async () => {
+  it('renders a single runtime error in the normal execution group', async () => {
     const { getNodeByExecutionId } = await import('@/utils/graphTraversalUtil')
     vi.mocked(getNodeByExecutionId).mockReturnValue({
       title: 'KSampler'
@@ -274,7 +387,11 @@ describe('TabErrors.vue', () => {
 
     expect(screen.getAllByText('KSampler').length).toBeGreaterThanOrEqual(1)
     expect(screen.getByText('Execution failed')).toBeInTheDocument()
-    expect(screen.getByTestId('runtime-error-panel')).toBeInTheDocument()
+    expect(
+      within(screen.getByTestId('error-group-execution')).getByTestId(
+        'runtime-error-panel'
+      )
+    ).toBeInTheDocument()
     expect(screen.getAllByText('Execution failed')).toHaveLength(1)
   })
 

src/components/rightSidePanel/errors/TabErrors.vue

@@ -11,32 +11,7 @@
       />
     </div>
 
-    <!-- Runtime error: full-height panel outside accordion -->
-    <div
-      v-if="singleRuntimeErrorCard"
-      data-testid="runtime-error-panel"
-      aria-live="polite"
-      class="flex min-h-0 flex-1 flex-col overflow-hidden px-4 py-3"
-    >
-      <div
-        class="shrink-0 pb-2 text-sm font-semibold text-destructive-background-hover"
-      >
-        {{ singleRuntimeErrorGroup?.displayTitle }}
-      </div>
-      <ErrorNodeCard
-        :key="singleRuntimeErrorCard.id"
-        :card="singleRuntimeErrorCard"
-        :show-node-id-badge="showNodeIdBadge"
-        full-height
-        class="min-h-0 flex-1"
-        @locate-node="handleLocateNode"
-        @enter-subgraph="handleEnterSubgraph"
-        @copy-to-clipboard="copyToClipboard"
-      />
-    </div>
-
-    <!-- Scrollable content (non-runtime or mixed errors) -->
-    <div v-else class="min-w-0 flex-1 overflow-y-auto" aria-live="polite">
+    <div class="min-w-0 flex-1 overflow-y-auto" aria-live="polite">
       <TransitionGroup tag="div" name="list-scale" class="relative">
         <div
           v-if="filteredGroups.length === 0"
@@ -70,10 +45,13 @@
                   {{ group.displayTitle }}
                 </span>
                 <span
-                  v-if="group.type === 'execution' && group.cards.length > 1"
+                  v-if="
+                    group.type === 'execution' &&
+                    getExecutionGroupCount(group) > 1
+                  "
                   class="text-destructive-background-hover"
                 >
-                  ({{ group.cards.length }})
+                  ({{ getExecutionGroupCount(group) }})
                 </span>
               </span>
               <Button
@@ -155,7 +133,7 @@
           </template>
 
           <div
-            v-if="group.type !== 'execution' && group.displayMessage"
+            v-if="group.displayMessage"
             data-testid="error-group-display-message"
             class="px-4 pt-1 pb-3"
           >
@@ -186,12 +164,79 @@
           />
 
           <!-- Execution Errors -->
-          <div v-if="group.type === 'execution'" class="space-y-3 px-4">
+          <div v-if="isExecutionItemListGroup(group)" class="px-4">
+            <ul class="m-0 list-none space-y-1 p-0">
+              <li
+                v-for="item in getExecutionItemList(group)"
+                :key="item.key"
+                class="min-w-0"
+              >
+                <div class="flex min-w-0 items-center gap-2">
+                  <span class="flex min-w-0 flex-1 items-center gap-1">
+                    <button
+                      v-tooltip.top="{
+                        value: item.displayDetails || undefined,
+                        showDelay: 300
+                      }"
+                      type="button"
+                      class="m-0 inline max-w-full cursor-pointer appearance-none border-0 bg-transparent p-0 text-left text-sm/relaxed font-normal wrap-break-word text-muted-foreground outline-none hover:text-base-foreground focus:outline-none focus-visible:underline focus-visible:ring-0 focus-visible:outline-none"
+                      @click="handleLocateNode(item.nodeId)"
+                    >
+                      {{ item.label }}
+                    </button>
+                    <Button
+                      v-if="item.displayDetails"
+                      variant="textonly"
+                      size="icon-sm"
+                      :class="
+                        cn(
+                          'size-6 shrink-0 text-muted-foreground hover:text-base-foreground',
+                          isExecutionItemDetailExpanded(item.key) &&
+                            'bg-secondary-background-selected text-base-foreground hover:bg-secondary-background-selected'
+                        )
+                      "
+                      :aria-label="
+                        t('rightSidePanel.infoFor', { item: item.label })
+                      "
+                      :aria-controls="getExecutionItemDetailId(item.key)"
+                      :aria-expanded="isExecutionItemDetailExpanded(item.key)"
+                      @click.stop="toggleExecutionItemDetail(item.key)"
+                    >
+                      <i class="icon-[lucide--info] size-3.5" />
+                    </Button>
+                  </span>
+                  <Button
+                    variant="textonly"
+                    size="icon-sm"
+                    class="size-8 shrink-0 text-muted-foreground hover:text-base-foreground"
+                    :aria-label="
+                      t('rightSidePanel.locateNodeFor', { item: item.label })
+                    "
+                    @click.stop="handleLocateNode(item.nodeId)"
+                  >
+                    <i class="icon-[lucide--locate] size-4" />
+                  </Button>
+                </div>
+                <TransitionCollapse>
+                  <p
+                    v-if="
+                      item.displayDetails &&
+                      isExecutionItemDetailExpanded(item.key)
+                    "
+                    :id="getExecutionItemDetailId(item.key)"
+                    class="m-0 mt-0.5 pr-10 text-2xs/relaxed wrap-break-word whitespace-pre-wrap text-muted-foreground"
+                  >
+                    {{ item.displayDetails }}
+                  </p>
+                </TransitionCollapse>
+              </li>
+            </ul>
+          </div>
+          <div v-else-if="group.type === 'execution'" class="space-y-3 px-4">
             <ErrorNodeCard
               v-for="card in group.cards"
               :key="card.id"
               :card="card"
-              :show-node-id-badge="showNodeIdBadge"
               :compact="isSingleNodeSelected"
               @locate-node="handleLocateNode"
               @enter-subgraph="handleEnterSubgraph"
@@ -255,6 +300,7 @@
 <script setup lang="ts">
 import { computed, defineAsyncComponent, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
+import { cn } from '@comfyorg/tailwind-utils'
 
 import { useCopyToClipboard } from '@/composables/useCopyToClipboard'
 import { useFocusNode } from '@/composables/canvas/useFocusNode'
@@ -266,6 +312,7 @@ import { NodeBadgeMode } from '@/types/nodeSource'
 
 import PropertiesAccordionItem from '../layout/PropertiesAccordionItem.vue'
 import CollapseToggleButton from '../layout/CollapseToggleButton.vue'
+import TransitionCollapse from '../layout/TransitionCollapse.vue'
 import AsyncSearchInput from '@/components/ui/search-input/AsyncSearchInput.vue'
 import ErrorNodeCard from './ErrorNodeCard.vue'
 import MissingNodeCard from './MissingNodeCard.vue'
@@ -285,6 +332,13 @@ import type { SwapNodeGroup } from './useErrorGroups'
 import type { ErrorGroup } from './types'
 import { useNodeReplacement } from '@/platform/nodeReplacement/useNodeReplacement'
 
+interface ExecutionItemListEntry {
+  key: string
+  nodeId: string
+  label: string
+  displayDetails?: string
+}
+
 const ErrorPanelSurveyCta =
   isNightly && !isCloud && !isDesktop
     ? defineAsyncComponent(
@@ -307,6 +361,7 @@ const { isInstalling: isInstallingAll, installAllPacks: installAll } =
 const { replaceGroup, replaceAllGroups } = useNodeReplacement()
 
 const searchQuery = ref('')
+const expandedExecutionItemDetailKeys = ref(new Set<string>())
 const isSearching = computed(() => searchQuery.value.trim() !== '')
 
 const fullSizeGroupTypes = new Set([
@@ -325,6 +380,78 @@ const showNodeIdBadge = computed(
     NodeBadgeMode.None
 )
 
+function isExecutionItemListGroup(group: ErrorGroup) {
+  return (
+    group.type === 'execution' &&
+    group.cards.length > 0 &&
+    group.cards.every(
+      (card) =>
+        card.nodeId &&
+        card.errors.length > 0 &&
+        card.errors.every(
+          (error) => !error.isRuntimeError && Boolean(error.displayItemLabel)
+        )
+    )
+  )
+}
+
+function getExecutionItemList(group: ErrorGroup): ExecutionItemListEntry[] {
+  if (group.type !== 'execution') return []
+
+  const items: ExecutionItemListEntry[] = []
+  for (const card of group.cards) {
+    if (!card.nodeId) continue
+    for (let idx = 0; idx < card.errors.length; idx++) {
+      const error = card.errors[idx]
+      const label = error.displayItemLabel
+      if (!label) continue
+      items.push({
+        key: `${card.id}:${idx}`,
+        nodeId: card.nodeId,
+        label,
+        displayDetails: error.displayDetails
+      })
+    }
+  }
+  return items.sort(compareExecutionItemListEntry)
+}
+
+function compareExecutionItemListEntry(
+  a: ExecutionItemListEntry,
+  b: ExecutionItemListEntry
+) {
+  return (
+    a.nodeId.localeCompare(b.nodeId, undefined, { numeric: true }) ||
+    a.label.localeCompare(b.label)
+  )
+}
+
+function getExecutionGroupCount(group: ErrorGroup) {
+  if (group.type !== 'execution') return 0
+  if (isExecutionItemListGroup(group)) {
+    return group.cards.reduce((count, card) => count + card.errors.length, 0)
+  }
+  return group.cards.length
+}
+
+function isExecutionItemDetailExpanded(key: string) {
+  return expandedExecutionItemDetailKeys.value.has(key)
+}
+
+function toggleExecutionItemDetail(key: string) {
+  const nextKeys = new Set(expandedExecutionItemDetailKeys.value)
+  if (nextKeys.has(key)) {
+    nextKeys.delete(key)
+  } else {
+    nextKeys.add(key)
+  }
+  expandedExecutionItemDetailKeys.value = nextKeys
+}
+
+function getExecutionItemDetailId(key: string) {
+  return `execution-item-detail-${key}`
+}
+
 const {
   allErrorGroups,
   tabErrorGroups,
@@ -356,20 +483,6 @@ function handleMissingModelRefresh() {
   void missingModelStore.refreshMissingModels()
 }
 
-const singleRuntimeErrorGroup = computed(() => {
-  if (filteredGroups.value.length !== 1) return null
-  const group = filteredGroups.value[0]
-  const isSoleRuntimeError =
-    group.type === 'execution' &&
-    group.cards.length === 1 &&
-    group.cards[0].errors.every((e) => e.isRuntimeError)
-  return isSoleRuntimeError ? group : null
-})
-
-const singleRuntimeErrorCard = computed(
-  () => singleRuntimeErrorGroup.value?.cards[0] ?? null
-)
-
 const isAllCollapsed = computed({
   get() {
     return filteredGroups.value.every((g) => isSectionCollapsed(g.groupKey))

src/components/rightSidePanel/errors/useErrorGroups.test.ts

@@ -23,6 +23,9 @@ vi.mock('@/utils/graphTraversalUtil', () => ({
 }))
 
 const mockIsCloud = vi.hoisted(() => ({ value: false }))
+const unknownValidationMessage = vi.hoisted(
+  () => 'A node returned a validation error ComfyUI does not recognize.'
+)
 vi.mock('@/platform/distribution/types', () => ({
   get isCloud() {
     return mockIsCloud.value
@@ -43,6 +46,18 @@ vi.mock('@/i18n', () => {
       'Required input missing',
     'errorCatalog.validationErrors.required_input_missing.toastMessage':
       '{nodeName} is missing a required input: {inputName}',
+    'errorCatalog.validationErrors.unknown_validation_error.title':
+      'Validation failed',
+    'errorCatalog.validationErrors.unknown_validation_error.message':
+      unknownValidationMessage,
+    'errorCatalog.validationErrors.unknown_validation_error.detailsWithRawDetails':
+      '{nodeName} returned an unrecognized validation error ({errorType}): {rawDetails}',
+    'errorCatalog.validationErrors.unknown_validation_error.itemLabel':
+      '{nodeName}',
+    'errorCatalog.validationErrors.unknown_validation_error.toastTitle':
+      'Validation failed',
+    'errorCatalog.validationErrors.unknown_validation_error.toastMessage':
+      '{nodeName} returned an unrecognized validation error.',
     'errorCatalog.promptErrors.prompt_no_outputs.title':
       'Prompt has no outputs',
     'errorCatalog.promptErrors.prompt_no_outputs.desc':
@@ -384,7 +399,7 @@ describe('useErrorGroups', () => {
       expect(swapIdx).toBeLessThan(missingIdx)
     })
 
-    it('includes execution error groups from node errors', async () => {
+    it('uses fallback catalog grouping for unknown node validation errors', async () => {
       const { store, groups } = createErrorGroups()
       store.lastNodeErrors = {
         '1': {
@@ -405,8 +420,8 @@ describe('useErrorGroups', () => {
         (g) => g.type === 'execution'
       )
       expect(execGroups.length).toBeGreaterThan(0)
-      expect(execGroups[0].groupKey).toBe('execution:KSampler')
-      expect(execGroups[0].displayTitle).toBe('KSampler')
+      expect(execGroups[0].groupKey).toBe('execution:unknown_validation_error')
+      expect(execGroups[0].displayTitle).toBe('Validation failed')
     })
 
     it('resolves required_input_missing item display copy', async () => {
@@ -455,6 +470,55 @@ describe('useErrorGroups', () => {
       )
     })
 
+    it('groups node validation errors by catalog id across node types', async () => {
+      const { store, groups } = createErrorGroups()
+      store.lastNodeErrors = {
+        '1': {
+          class_type: 'KSampler',
+          dependent_outputs: [],
+          errors: [
+            {
+              type: 'required_input_missing',
+              message: 'Required input is missing',
+              details: 'model',
+              extra_info: {
+                input_name: 'model'
+              }
+            }
+          ]
+        },
+        '2': {
+          class_type: 'CLIPLoader',
+          dependent_outputs: [],
+          errors: [
+            {
+              type: 'required_input_missing',
+              message: 'Required input is missing',
+              details: 'clip',
+              extra_info: {
+                input_name: 'clip'
+              }
+            }
+          ]
+        }
+      }
+      await nextTick()
+
+      const execGroups = groups.allErrorGroups.value.filter(
+        (g) => g.type === 'execution'
+      )
+      expect(execGroups).toHaveLength(1)
+
+      const [group] = execGroups
+      expect(group.groupKey).toBe('execution:missing_connection')
+      expect(group.displayTitle).toBe('Missing connection')
+      expect(group.cards.map((card) => card.title)).toEqual([
+        'KSampler',
+        'CLIPLoader'
+      ])
+      expect(group.cards.flatMap((card) => card.errors)).toHaveLength(2)
+    })
+
     it('uses general execution_failed display fields for unrecognized runtime execution errors', async () => {
       mockIsCloud.value = true
       const { store, groups } = createErrorGroups()
@@ -716,7 +780,7 @@ describe('useErrorGroups', () => {
       expect(groups.groupedErrorMessages.value).toEqual([])
     })
 
-    it('collects unique error messages from node errors', async () => {
+    it('collects unique display messages from node errors', async () => {
       const { store, groups } = createErrorGroups()
       store.lastNodeErrors = {
         '1': {
@@ -736,10 +800,7 @@ describe('useErrorGroups', () => {
       await nextTick()
 
       const messages = groups.groupedErrorMessages.value
-      expect(messages).toContain('Error A')
-      expect(messages).toContain('Error B')
-      // Deduplication: Error A appears twice but should only be listed once
-      expect(messages.filter((m) => m === 'Error A')).toHaveLength(1)
+      expect(messages).toEqual([unknownValidationMessage])
     })
 
     it('includes missing node group display message', async () => {

src/components/rightSidePanel/errors/useErrorGroups.ts

@@ -30,6 +30,7 @@ import type {
   MissingModelCandidate,
   MissingModelGroup
 } from '@/platform/missingModel/types'
+import type { ResolvedCatalogErrorMessage } from '@/platform/errorCatalog/types'
 import type { MissingMediaGroup } from '@/platform/missingMedia/types'
 import { groupCandidatesByName } from '@/platform/missingModel/missingModelScan'
 import { groupCandidatesByMediaType } from '@/platform/missingMedia/missingMediaScan'
@@ -43,7 +44,6 @@ import {
 } from '@/types/nodeIdentification'
 
 const PROMPT_CARD_ID = '__prompt__'
-const SINGLE_GROUP_KEY = '__single__'
 
 /** Sentinel: distinguishes "fetch in-flight" from "fetch done, pack not found (null)". */
 const RESOLVING = '__RESOLVING__'
@@ -66,6 +66,7 @@ export interface SwapNodeGroup {
 interface GroupEntry {
   type: 'execution'
   displayTitle: string
+  displayMessage?: string
   priority: number
   cards: Map<string, ErrorCardData>
 }
@@ -75,10 +76,14 @@ interface ErrorSearchItem {
   cardIndex: number
   searchableNodeId: string
   searchableNodeTitle: string
+  searchableRawMessage: string
+  searchableRawDetails: string
   searchableMessage: string
   searchableDetails: string
 }
 
+type CataloguedErrorItem = ErrorItem & ResolvedCatalogErrorMessage
+
 /**
  * Resolve display info for a node by its execution ID.
  * For group node internals, resolves the parent group node's title instead.
@@ -106,17 +111,21 @@ function getOrCreateGroup(
   groupsMap: Map<string, GroupEntry>,
   groupKey: string,
   displayTitle = groupKey,
-  priority = 1
+  priority = 1,
+  displayMessage?: string
 ): Map<string, ErrorCardData> {
   let entry = groupsMap.get(groupKey)
   if (!entry) {
     entry = {
       type: 'execution',
       displayTitle,
+      displayMessage,
       priority,
       cards: new Map()
     }
     groupsMap.set(groupKey, entry)
+  } else if (!entry.displayMessage && displayMessage) {
+    entry.displayMessage = displayMessage
   }
   return entry.cards
 }
@@ -138,44 +147,6 @@ function createErrorCard(
   }
 }
 
-/**
- * In single-node mode, regroup cards by error message instead of class_type.
- * This lets the user see "what kinds of errors this node has" at a glance.
- */
-function regroupByErrorMessage(
-  groupsMap: Map<string, GroupEntry>
-): Map<string, GroupEntry> {
-  const allCards = Array.from(groupsMap.values()).flatMap((g) =>
-    Array.from(g.cards.values())
-  )
-
-  const cardErrorPairs = allCards.flatMap((card) =>
-    card.errors.map((error) => ({ card, error }))
-  )
-
-  const messageMap = new Map<string, GroupEntry>()
-  for (const { card, error } of cardErrorPairs) {
-    addCardErrorToGroup(messageMap, card, error)
-  }
-
-  return messageMap
-}
-
-function addCardErrorToGroup(
-  messageMap: Map<string, GroupEntry>,
-  card: ErrorCardData,
-  error: ErrorItem
-) {
-  const displayTitle =
-    error.displayTitle ?? error.displayMessage ?? error.message
-  const groupKey = error.catalogId ?? displayTitle
-  const group = getOrCreateGroup(messageMap, groupKey, displayTitle, 1)
-  if (!group.has(card.id)) {
-    group.set(card.id, { ...card, errors: [] })
-  }
-  group.get(card.id)?.errors.push(error)
-}
-
 function compareNodeId(a: ErrorCardData, b: ErrorCardData): number {
   return compareExecutionId(a.nodeId, b.nodeId)
 }
@@ -186,6 +157,7 @@ function toSortedGroups(groupsMap: Map<string, GroupEntry>): ErrorGroup[] {
       type: 'execution' as const,
       groupKey: `execution:${rawGroupKey}`,
       displayTitle: groupData.displayTitle,
+      displayMessage: groupData.displayMessage,
       cards: Array.from(groupData.cards.values()).sort(compareNodeId),
       priority: groupData.priority
     }))
@@ -209,6 +181,8 @@ function searchErrorGroups(groups: ErrorGroup[], query: string) {
         cardIndex: ci,
         searchableNodeId: card.nodeId ?? '',
         searchableNodeTitle: card.nodeTitle ?? '',
+        searchableRawMessage: card.errors.map((e) => e.message).join(' '),
+        searchableRawDetails: card.errors.map((e) => e.details).join(' '),
         searchableMessage: card.errors
           .map((e) =>
             [e.displayTitle, e.displayMessage, e.message]
@@ -225,9 +199,11 @@ function searchErrorGroups(groups: ErrorGroup[], query: string) {
 
   const fuseOptions: IFuseOptions<ErrorSearchItem> = {
     keys: [
-      { name: 'searchableNodeId', weight: 0.3 },
-      { name: 'searchableNodeTitle', weight: 0.3 },
-      { name: 'searchableMessage', weight: 0.3 },
+      { name: 'searchableRawMessage', weight: 0.3 },
+      { name: 'searchableNodeId', weight: 0.2 },
+      { name: 'searchableNodeTitle', weight: 0.2 },
+      { name: 'searchableMessage', weight: 0.2 },
+      { name: 'searchableRawDetails', weight: 0.1 },
       { name: 'searchableDetails', weight: 0.1 }
     ],
     threshold: 0.3
@@ -333,18 +309,23 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
     nodeId: string,
     classType: string,
     idPrefix: string,
-    errors: ErrorItem[],
+    error: CataloguedErrorItem,
     filterBySelection = false
   ) {
     if (filterBySelection && !isErrorInSelection(nodeId)) return
-    const groupKey = isSingleNodeSelected.value ? SINGLE_GROUP_KEY : classType
-    const cards = getOrCreateGroup(groupsMap, groupKey, classType, 1)
+    const cards = getOrCreateGroup(
+      groupsMap,
+      error.catalogId,
+      error.displayTitle ?? classType,
+      1,
+      error.displayMessage
+    )
     if (!cards.has(nodeId)) {
       cards.set(nodeId, createErrorCard(nodeId, classType, idPrefix))
     }
     const card = cards.get(nodeId)
     if (!card) return
-    card.errors.push(...errors)
+    card.errors.push(error)
   }
 
   function processPromptError(
@@ -368,7 +349,8 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
       groupsMap,
       `prompt:${error.type}`,
       groupDisplayTitle,
-      0
+      0,
+      resolvedDisplay.displayMessage
     )
 
     // Prompt errors are not tied to a node, so they bypass addNodeErrorToGroup.
@@ -395,13 +377,13 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
     )) {
       const nodeDisplayName =
         resolveNodeInfo(nodeId).title || nodeError.class_type
-      addNodeErrorToGroup(
-        groupsMap,
-        nodeId,
-        nodeError.class_type,
-        'node',
-        nodeError.errors.map((e) => {
-          return {
+      for (const e of nodeError.errors) {
+        addNodeErrorToGroup(
+          groupsMap,
+          nodeId,
+          nodeError.class_type,
+          'node',
+          {
             message: e.message,
             details: e.details ?? undefined,
             ...resolveRunErrorMessage({
@@ -409,10 +391,10 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
               error: e,
               nodeDisplayName
             })
-          }
-        }),
-        filterBySelection
-      )
+          },
+          filterBySelection
+        )
+      }
     }
   }
 
@@ -428,20 +410,18 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
       String(e.node_id),
       e.node_type,
       'exec',
-      [
-        {
-          message: `${e.exception_type}: ${e.exception_message}`,
-          details: e.traceback.join('\n'),
-          isRuntimeError: true,
-          exceptionType: e.exception_type,
-          ...resolveRunErrorMessage({
-            kind: 'execution',
-            error: e,
-            nodeDisplayName:
-              resolveNodeInfo(String(e.node_id)).title || e.node_type
-          })
-        }
-      ],
+      {
+        message: `${e.exception_type}: ${e.exception_message}`,
+        details: e.traceback.join('\n'),
+        isRuntimeError: true,
+        exceptionType: e.exception_type,
+        ...resolveRunErrorMessage({
+          kind: 'execution',
+          error: e,
+          nodeDisplayName:
+            resolveNodeInfo(String(e.node_id)).title || e.node_type
+        })
+      },
       filterBySelection
     )
   }
@@ -867,10 +847,6 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
     processNodeErrors(groupsMap, true)
     processExecutionError(groupsMap, true)
 
-    const executionGroups = isSingleNodeSelected.value
-      ? toSortedGroups(regroupByErrorMessage(groupsMap))
-      : toSortedGroups(groupsMap)
-
     const filterByNode = selectedNodeInfo.value.nodeIds !== null
 
     // Missing nodes are intentionally unfiltered — they represent
@@ -883,7 +859,7 @@ export function useErrorGroups(searchQuery: MaybeRefOrGetter<string>) {
       ...(filterByNode
         ? buildMissingMediaGroupsFiltered()
         : buildMissingMediaGroups()),
-      ...executionGroups
+      ...toSortedGroups(groupsMap)
     ]
   })
 

src/composables/graph/useArrangeNodes.test.ts

@@ -0,0 +1,182 @@
+import { describe, expect, it } from 'vitest'
+
+import { computeArrangement } from '@/composables/graph/useArrangeNodes'
+import type { LGraphNode } from '@/lib/litegraph/src/litegraph'
+import { TitleMode } from '@/lib/litegraph/src/types/globalEnums'
+
+interface MockNodeSpec {
+  id: number | string
+  pos: [number, number]
+  size: [number, number]
+  title_mode?: TitleMode
+}
+
+const makeNode = (spec: MockNodeSpec): LGraphNode =>
+  ({
+    id: spec.id,
+    pos: spec.pos,
+    size: spec.size,
+    title_mode: spec.title_mode
+  }) as unknown as LGraphNode
+
+const GAP = 12
+const TITLE = 30 // LiteGraph.NODE_TITLE_HEIGHT default
+
+describe('computeArrangement', () => {
+  it('returns no updates when fewer than 2 nodes are selected', () => {
+    expect(computeArrangement([], 'vertical')).toEqual([])
+    expect(
+      computeArrangement(
+        [makeNode({ id: 1, pos: [0, 0], size: [100, 50] })],
+        'grid'
+      )
+    ).toEqual([])
+  })
+
+  describe('vertical', () => {
+    it('left-aligns to anchor x and stacks downward sorted by current y', () => {
+      const nodes = [
+        makeNode({ id: 'a', pos: [10, 100], size: [100, 50] }),
+        makeNode({ id: 'b', pos: [200, 0], size: [80, 30] }),
+        makeNode({ id: 'c', pos: [50, 200], size: [120, 40] })
+      ]
+      // Anchor: 'a' has smallest x+y (110). Sort by Y: b(0), a(100), c(200).
+      // Visual top of layout = anchor.posY - TITLE = 100 - 30 = 70.
+      // Each node's pos.y = visualTop + its titleHeight (30).
+      // b: pos.y = 70+30 = 100; visualTop += (30+30)+12 = 142
+      // a: pos.y = 142+30 = 172; visualTop += (50+30)+12 = 234
+      // c: pos.y = 234+30 = 264
+      const result = computeArrangement(nodes, 'vertical')
+      expect(result).toEqual([
+        { nodeId: 'b', position: { x: 10, y: 100 } },
+        { nodeId: 'a', position: { x: 10, y: 172 } },
+        { nodeId: 'c', position: { x: 10, y: 264 } }
+      ])
+    })
+
+    it('omits the title-height contribution for NO_TITLE nodes', () => {
+      const nodes = [
+        makeNode({
+          id: 1,
+          pos: [0, 0],
+          size: [100, 100],
+          title_mode: TitleMode.NO_TITLE
+        }),
+        makeNode({
+          id: 2,
+          pos: [0, 200],
+          size: [100, 100],
+          title_mode: TitleMode.NO_TITLE
+        })
+      ]
+      // No titles: visualHeight = size[1] = 100. visualTop = 0. Gap = 12.
+      // 1: pos.y = 0; visualTop = 0 + 100 + 12 = 112.
+      // 2: pos.y = 112.
+      const result = computeArrangement(nodes, 'vertical')
+      expect(result).toEqual([
+        { nodeId: 1, position: { x: 0, y: 0 } },
+        { nodeId: 2, position: { x: 0, y: 100 + GAP } }
+      ])
+    })
+
+    it('preserves heterogeneous heights when computing gaps', () => {
+      const nodes = [
+        makeNode({ id: 1, pos: [0, 0], size: [100, 200] }),
+        makeNode({ id: 2, pos: [0, 50], size: [100, 50] })
+      ]
+      // visualTop=-30. 1: pos.y=0; visualTop += (200+30)+12 = 212.
+      // 2: pos.y = 212+30 = 242.
+      const result = computeArrangement(nodes, 'vertical')
+      expect(result).toEqual([
+        { nodeId: 1, position: { x: 0, y: 0 } },
+        { nodeId: 2, position: { x: 0, y: 200 + TITLE + GAP } }
+      ])
+    })
+  })
+
+  describe('horizontal', () => {
+    it('top-aligns to anchor y and lays out rightward sorted by current x', () => {
+      const nodes = [
+        makeNode({ id: 'a', pos: [100, 50], size: [80, 40] }),
+        makeNode({ id: 'b', pos: [0, 200], size: [60, 30] }),
+        makeNode({ id: 'c', pos: [300, 80], size: [50, 50] })
+      ]
+      // Anchor: smallest x+y → a(150), b(200), c(380) → anchor 'a' at (100, 50).
+      // Sort by X: b(0), a(100), c(300)
+      // Lay out from (100, 50):
+      //   b at (100, 50)
+      //   a at (100 + 60 + 12, 50) = (172, 50)
+      //   c at (172 + 80 + 12, 50) = (264, 50)
+      const result = computeArrangement(nodes, 'horizontal')
+      expect(result).toEqual([
+        { nodeId: 'b', position: { x: 100, y: 50 } },
+        { nodeId: 'a', position: { x: 172, y: 50 } },
+        { nodeId: 'c', position: { x: 264, y: 50 } }
+      ])
+    })
+  })
+
+  describe('grid', () => {
+    it('lays out 4 nodes as 2x2 with column/row sizes from max width/height', () => {
+      const nodes = [
+        makeNode({ id: 1, pos: [0, 0], size: [100, 50] }),
+        makeNode({ id: 2, pos: [200, 0], size: [80, 60] }),
+        makeNode({ id: 3, pos: [0, 100], size: [120, 40] }),
+        makeNode({ id: 4, pos: [200, 100], size: [90, 30] })
+      ]
+      // Anchor: 1 at (0,0). Sort by Y then X: 1, 2, 3, 4. cols=2, rows=2.
+      // Col widths: col0=max(100,120)=120; col1=max(80,90)=90.
+      // Row visual heights: row0=max(50+30,60+30)=90; row1=max(40+30,30+30)=70.
+      // colX=[0, 132]. rowVisualTop=[-30, -30+90+12=72].
+      // pos.y = rowVisualTop + 30 (titleHeight).
+      const result = computeArrangement(nodes, 'grid')
+      expect(result).toEqual([
+        { nodeId: 1, position: { x: 0, y: 0 } },
+        { nodeId: 2, position: { x: 132, y: 0 } },
+        { nodeId: 3, position: { x: 0, y: 102 } },
+        { nodeId: 4, position: { x: 132, y: 102 } }
+      ])
+    })
+
+    it('uses ceil(sqrt(n)) columns for non-square counts', () => {
+      // 5 nodes → ceil(sqrt(5))=3 cols, 2 rows. Last cell empty.
+      const nodes = Array.from({ length: 5 }, (_, i) =>
+        makeNode({
+          id: i + 1,
+          pos: [i * 50, i * 50],
+          size: [40, 40]
+        })
+      )
+      const result = computeArrangement(nodes, 'grid')
+      expect(result).toHaveLength(5)
+      // Sorted by Y then X = original order. Anchor = node 1 at (0,0).
+      // colWidths=[40,40,40]. rowVisualHeight = 40+30 = 70 each.
+      // colX=[0,52,104]. rowVisualTop=[-30, -30+70+12=52]. pos.y = visualTop+30.
+      expect(result[0].position).toEqual({ x: 0, y: 0 })
+      expect(result[1].position).toEqual({ x: 52, y: 0 })
+      expect(result[2].position).toEqual({ x: 104, y: 0 })
+      expect(result[3].position).toEqual({ x: 0, y: 82 })
+      expect(result[4].position).toEqual({ x: 52, y: 82 })
+    })
+  })
+
+  describe('anchor selection', () => {
+    it('picks the node with smallest x+y, not min-x or min-y alone', () => {
+      const nodes = [
+        // min y but large x: x+y = 1000
+        makeNode({ id: 'minY', pos: [1000, 0], size: [50, 50] }),
+        // min x but large y: x+y = 1000
+        makeNode({ id: 'minX', pos: [0, 1000], size: [50, 50] }),
+        // smallest x+y: 600
+        makeNode({ id: 'anchor', pos: [300, 300], size: [50, 50] })
+      ]
+      const result = computeArrangement(nodes, 'vertical')
+      // All updates left-align to anchor.x = 300. First in sort = minY (y=0).
+      expect(result[0]).toEqual({
+        nodeId: 'minY',
+        position: { x: 300, y: 300 }
+      })
+      expect(result.every((u) => u.position.x === 300)).toBe(true)
+    })
+  })
+})

src/composables/graph/useArrangeNodes.ts

@@ -0,0 +1,186 @@
+import { useSelectionState } from '@/composables/graph/useSelectionState'
+import { LiteGraph } from '@/lib/litegraph/src/litegraph'
+import type { LGraphNode, NodeId } from '@/lib/litegraph/src/litegraph'
+import { TitleMode } from '@/lib/litegraph/src/types/globalEnums'
+import { useWorkflowStore } from '@/platform/workflow/management/stores/workflowStore'
+import { useLayoutMutations } from '@/renderer/core/layout/operations/layoutMutations'
+import { LayoutSource } from '@/renderer/core/layout/types'
+import type { Point } from '@/renderer/core/layout/types'
+import { app } from '@/scripts/app'
+
+export type ArrangeLayout = 'vertical' | 'horizontal' | 'grid'
+
+export const DEFAULT_ARRANGE_GAP = 12
+export const MIN_ARRANGE_GAP = 0
+export const MAX_ARRANGE_GAP = 48
+
+interface NodeBox {
+  id: NodeId
+  posX: number
+  posY: number
+  visualWidth: number
+  visualHeight: number
+  titleHeight: number
+}
+
+interface ArrangeUpdate {
+  nodeId: NodeId
+  position: Point
+}
+
+const titleHeightOf = (node: LGraphNode): number => {
+  const mode = node.title_mode
+  if (mode === TitleMode.TRANSPARENT_TITLE || mode === TitleMode.NO_TITLE) {
+    return 0
+  }
+  return LiteGraph.NODE_TITLE_HEIGHT
+}
+
+const toBox = (node: LGraphNode): NodeBox => {
+  const titleHeight = titleHeightOf(node)
+  return {
+    id: node.id,
+    posX: node.pos[0],
+    posY: node.pos[1],
+    visualWidth: node.size[0],
+    visualHeight: node.size[1] + titleHeight,
+    titleHeight
+  }
+}
+
+const byTopDown = (a: NodeBox, b: NodeBox) => a.posY - b.posY || a.posX - b.posX
+
+const byLeftRight = (a: NodeBox, b: NodeBox) =>
+  a.posX - b.posX || a.posY - b.posY
+
+const findAnchor = (boxes: NodeBox[]): NodeBox =>
+  boxes.reduce((best, box) =>
+    box.posX + box.posY < best.posX + best.posY ? box : best
+  )
+
+const cumulativeOffsets = (
+  sizes: number[],
+  origin: number,
+  gap: number
+): number[] => {
+  const offsets: number[] = [origin]
+  for (let i = 1; i < sizes.length; i++) {
+    offsets.push(offsets[i - 1] + sizes[i - 1] + gap)
+  }
+  return offsets
+}
+
+const arrangeVertical = (
+  boxes: NodeBox[],
+  anchor: NodeBox,
+  gap: number
+): ArrangeUpdate[] => {
+  const sorted = [...boxes].sort(byTopDown)
+  let visualTop = anchor.posY - anchor.titleHeight
+  return sorted.map((box) => {
+    const update: ArrangeUpdate = {
+      nodeId: box.id,
+      position: { x: anchor.posX, y: visualTop + box.titleHeight }
+    }
+    visualTop += box.visualHeight + gap
+    return update
+  })
+}
+
+const arrangeHorizontal = (
+  boxes: NodeBox[],
+  anchor: NodeBox,
+  gap: number
+): ArrangeUpdate[] => {
+  const sorted = [...boxes].sort(byLeftRight)
+  const visualTop = anchor.posY - anchor.titleHeight
+  let cursorX = anchor.posX
+  return sorted.map((box) => {
+    const update: ArrangeUpdate = {
+      nodeId: box.id,
+      position: { x: cursorX, y: visualTop + box.titleHeight }
+    }
+    cursorX += box.visualWidth + gap
+    return update
+  })
+}
+
+const arrangeGrid = (
+  boxes: NodeBox[],
+  anchor: NodeBox,
+  gap: number
+): ArrangeUpdate[] => {
+  const sorted = [...boxes].sort(byTopDown)
+  const cols = Math.ceil(Math.sqrt(sorted.length))
+  const rows = Math.ceil(sorted.length / cols)
+
+  const colWidths = new Array<number>(cols).fill(0)
+  const rowHeights = new Array<number>(rows).fill(0)
+  sorted.forEach((box, i) => {
+    const col = i % cols
+    const row = Math.floor(i / cols)
+    if (box.visualWidth > colWidths[col]) colWidths[col] = box.visualWidth
+    if (box.visualHeight > rowHeights[row]) rowHeights[row] = box.visualHeight
+  })
+
+  const colX = cumulativeOffsets(colWidths, anchor.posX, gap)
+  const rowVisualTop = cumulativeOffsets(
+    rowHeights,
+    anchor.posY - anchor.titleHeight,
+    gap
+  )
+
+  return sorted.map((box, i) => {
+    const col = i % cols
+    const row = Math.floor(i / cols)
+    return {
+      nodeId: box.id,
+      position: {
+        x: colX[col],
+        y: rowVisualTop[row] + box.titleHeight
+      }
+    }
+  })
+}
+
+export function computeArrangement(
+  nodes: LGraphNode[],
+  layout: ArrangeLayout,
+  gap: number = DEFAULT_ARRANGE_GAP
+): ArrangeUpdate[] {
+  if (nodes.length < 2) return []
+  const boxes = nodes.map(toBox)
+  const anchor = findAnchor(boxes)
+  if (layout === 'vertical') return arrangeVertical(boxes, anchor, gap)
+  if (layout === 'horizontal') return arrangeHorizontal(boxes, anchor, gap)
+  return arrangeGrid(boxes, anchor, gap)
+}
+
+interface ArrangeOptions {
+  gap?: number
+  captureUndo?: boolean
+}
+
+export function useArrangeNodes() {
+  const { selectedNodes, hasMultipleSelection } = useSelectionState()
+  const mutations = useLayoutMutations()
+  const workflowStore = useWorkflowStore()
+
+  const arrangeNodes = (
+    layout: ArrangeLayout,
+    { gap = DEFAULT_ARRANGE_GAP, captureUndo = true }: ArrangeOptions = {}
+  ) => {
+    if (!hasMultipleSelection.value) return
+    const updates = computeArrangement(selectedNodes.value, layout, gap)
+    if (updates.length === 0) return
+
+    mutations.setSource(LayoutSource.Canvas)
+    mutations.batchMoveNodes(updates)
+    app.canvas?.setDirty(true, true)
+    if (captureUndo) {
+      workflowStore.activeWorkflow?.changeTracker?.captureCanvasState()
+    }
+  }
+
+  return { arrangeNodes, canArrange: hasMultipleSelection }
+}

src/composables/graph/useArrangeSession.test.ts

@@ -0,0 +1,115 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+
+import type * as ArrangeNodesModule from '@/composables/graph/useArrangeNodes'
+import { useArrangeSession } from '@/composables/graph/useArrangeSession'
+
+const mockArrangeNodes = vi.fn()
+
+vi.mock('@/composables/graph/useArrangeNodes', async () => {
+  const actual = await vi.importActual<typeof ArrangeNodesModule>(
+    '@/composables/graph/useArrangeNodes'
+  )
+  return {
+    ...actual,
+    useArrangeNodes: () => ({ arrangeNodes: mockArrangeNodes })
+  }
+})
+
+describe('useArrangeSession', () => {
+  let frameCallbacks: Array<FrameRequestCallback>
+  let nextHandle: number
+
+  beforeEach(() => {
+    mockArrangeNodes.mockReset()
+    frameCallbacks = []
+    nextHandle = 1
+    vi.spyOn(globalThis, 'requestAnimationFrame').mockImplementation(
+      (cb: FrameRequestCallback) => {
+        frameCallbacks.push(cb)
+        return nextHandle++
+      }
+    )
+    vi.spyOn(globalThis, 'cancelAnimationFrame').mockImplementation((id) => {
+      frameCallbacks[id - 1] = () => {}
+    })
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  const flushFrames = () => {
+    const callbacks = frameCallbacks
+    frameCallbacks = []
+    callbacks.forEach((cb) => cb(performance.now()))
+  }
+
+  it('start() applies layout immediately and captures undo', () => {
+    const session = useArrangeSession()
+    session.start('vertical')
+
+    expect(mockArrangeNodes).toHaveBeenCalledTimes(1)
+    expect(mockArrangeNodes).toHaveBeenCalledWith('vertical', {
+      gap: 12,
+      captureUndo: true
+    })
+    expect(session.activeLayout.value).toBe('vertical')
+    expect(session.gap.value).toBe(12)
+  })
+
+  it('previewGap() throttles repeated calls into a single frame', () => {
+    const session = useArrangeSession()
+    session.start('grid')
+    mockArrangeNodes.mockClear()
+
+    session.previewGap(20)
+    session.previewGap(30)
+    session.previewGap(40)
+
+    expect(mockArrangeNodes).not.toHaveBeenCalled()
+    flushFrames()
+
+    expect(mockArrangeNodes).toHaveBeenCalledTimes(1)
+    expect(mockArrangeNodes).toHaveBeenCalledWith('grid', {
+      gap: 40,
+      captureUndo: false
+    })
+  })
+
+  it('previewGap() is a no-op outside an active session', () => {
+    const session = useArrangeSession()
+    session.previewGap(20)
+    flushFrames()
+    expect(mockArrangeNodes).not.toHaveBeenCalled()
+  })
+
+  it('commitGap() cancels any pending preview frame', () => {
+    const session = useArrangeSession()
+    session.start('horizontal')
+    mockArrangeNodes.mockClear()
+
+    session.previewGap(25)
+    session.commitGap(36)
+    flushFrames()
+
+    expect(mockArrangeNodes).toHaveBeenCalledTimes(1)
+    expect(mockArrangeNodes).toHaveBeenCalledWith('horizontal', {
+      gap: 36,
+      captureUndo: true
+    })
+  })
+
+  it('reset() ends the session and prevents pending frames from arranging', () => {
+    const session = useArrangeSession()
+    session.start('vertical')
+    mockArrangeNodes.mockClear()
+
+    session.previewGap(40)
+    session.reset()
+    flushFrames()
+
+    expect(mockArrangeNodes).not.toHaveBeenCalled()
+    expect(session.activeLayout.value).toBeNull()
+    expect(session.gap.value).toBe(12)
+  })
+})

src/composables/graph/useArrangeSession.ts

@@ -0,0 +1,60 @@
+import { readonly, ref } from 'vue'
+
+import {
+  DEFAULT_ARRANGE_GAP,
+  useArrangeNodes
+} from '@/composables/graph/useArrangeNodes'
+import type { ArrangeLayout } from '@/composables/graph/useArrangeNodes'
+
+export function useArrangeSession() {
+  const { arrangeNodes } = useArrangeNodes()
+
+  const activeLayout = ref<ArrangeLayout | null>(null)
+  const gap = ref(DEFAULT_ARRANGE_GAP)
+  let pendingFrame: number | null = null
+
+  const cancelPendingFrame = () => {
+    if (pendingFrame === null) return
+    cancelAnimationFrame(pendingFrame)
+    pendingFrame = null
+  }
+
+  const reset = () => {
+    cancelPendingFrame()
+    activeLayout.value = null
+    gap.value = DEFAULT_ARRANGE_GAP
+  }
+
+  const start = (layout: ArrangeLayout) => {
+    gap.value = DEFAULT_ARRANGE_GAP
+    activeLayout.value = layout
+    arrangeNodes(layout, { gap: gap.value, captureUndo: true })
+  }
+
+  const previewGap = (nextGap: number) => {
+    if (activeLayout.value === null) return
+    gap.value = nextGap
+    cancelPendingFrame()
+    pendingFrame = requestAnimationFrame(() => {
+      pendingFrame = null
+      if (activeLayout.value === null) return
+      arrangeNodes(activeLayout.value, { gap: nextGap, captureUndo: false })
+    })
+  }
+
+  const commitGap = (nextGap: number) => {
+    if (activeLayout.value === null) return
+    cancelPendingFrame()
+    gap.value = nextGap
+    arrangeNodes(activeLayout.value, { gap: nextGap, captureUndo: true })
+  }
+
+  return {
+    activeLayout: readonly(activeLayout),
+    gap: readonly(gap),
+    start,
+    previewGap,
+    commitGap,
+    reset
+  }
+}

src/composables/useLoad3d.test.ts

@@ -3,7 +3,14 @@ import { nextTick, reactive, ref, shallowRef } from 'vue'
 import type { Pinia } from 'pinia'
 import { getActivePinia } from 'pinia'
 
-import { nodeToLoad3dMap, useLoad3d } from '@/composables/useLoad3d'
+import {
+  getLoad3dOutputCache,
+  isLoad3dSceneDirty,
+  markLoad3dSceneDirty,
+  nodeToLoad3dMap,
+  setLoad3dOutputCache,
+  useLoad3d
+} from '@/composables/useLoad3d'
 import Load3d from '@/extensions/core/load3d/Load3d'
 import Load3dUtils from '@/extensions/core/load3d/Load3dUtils'
 import { createLoad3d } from '@/extensions/core/load3d/createLoad3d'
@@ -186,6 +193,7 @@ describe('useLoad3d', () => {
       resetGizmoTransform: vi.fn(),
       applyGizmoTransform: vi.fn(),
       fitToViewer: vi.fn(),
+      centerCameraOnModel: vi.fn(),
       getGizmoTransform: vi.fn().mockReturnValue({
         position: { x: 0, y: 0, z: 0 },
         rotation: { x: 0, y: 0, z: 0 },
@@ -1742,4 +1750,184 @@ describe('useLoad3d', () => {
       expect(originalOnRemoved).toHaveBeenCalledTimes(1)
     })
   })
+
+  describe('scene dirty tracking', () => {
+    const fakeCache = {
+      image: 'threed/scene-1.png [temp]',
+      mask: 'threed/scene_mask-1.png [temp]',
+      normal: 'threed/scene_normal-1.png [temp]',
+      camera_info: null,
+      recording: '',
+      model_3d_info: []
+    }
+
+    it('treats an unseen node as dirty by default', () => {
+      const fresh = createMockLGraphNode({ properties: {} })
+      expect(isLoad3dSceneDirty(fresh)).toBe(true)
+    })
+
+    it('markLoad3dSceneDirty sets the node dirty', () => {
+      const fresh = createMockLGraphNode({ properties: {} })
+      setLoad3dOutputCache(fresh, fakeCache)
+      expect(isLoad3dSceneDirty(fresh)).toBe(false)
+
+      markLoad3dSceneDirty(fresh)
+      expect(isLoad3dSceneDirty(fresh)).toBe(true)
+    })
+
+    it('setLoad3dOutputCache stores the output and clears dirty', () => {
+      const fresh = createMockLGraphNode({ properties: {} })
+      setLoad3dOutputCache(fresh, fakeCache)
+
+      expect(getLoad3dOutputCache(fresh)).toBe(fakeCache)
+      expect(isLoad3dSceneDirty(fresh)).toBe(false)
+    })
+
+    it('two nodes keep independent dirty state', () => {
+      const a = createMockLGraphNode({ properties: {} })
+      const b = createMockLGraphNode({ properties: {} })
+
+      setLoad3dOutputCache(a, fakeCache)
+      expect(isLoad3dSceneDirty(a)).toBe(false)
+      expect(isLoad3dSceneDirty(b)).toBe(true)
+
+      markLoad3dSceneDirty(a)
+      expect(isLoad3dSceneDirty(a)).toBe(true)
+      expect(isLoad3dSceneDirty(b)).toBe(true)
+    })
+
+    it('markLoad3dSceneDirty on null is a no-op', () => {
+      expect(() => markLoad3dSceneDirty(null)).not.toThrow()
+    })
+
+    it('sceneConfig changes flip the node dirty', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(false)
+
+      composable.sceneConfig.value.backgroundColor = '#ffffff'
+      await nextTick()
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('cameraChanged event marks the node dirty', async () => {
+      let cameraChangedHandler: ((state: unknown) => void) | undefined
+      vi.mocked(mockLoad3d.addEventListener!).mockImplementation(
+        (event: string, handler: unknown) => {
+          if (event === 'cameraChanged') {
+            cameraChangedHandler = handler as (state: unknown) => void
+          }
+        }
+      )
+
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(false)
+
+      cameraChangedHandler!({ position: { x: 1, y: 2, z: 3 } })
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('handleStopRecording marks dirty when a recording was produced', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+
+      vi.mocked(mockLoad3d.getRecordingDuration!).mockReturnValue(5)
+      composable.handleStopRecording()
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('handleStopRecording leaves dirty alone when no recording was produced', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+
+      vi.mocked(mockLoad3d.getRecordingDuration!).mockReturnValue(0)
+      composable.handleStopRecording()
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(false)
+    })
+
+    it('handleClearRecording marks dirty', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+      composable.handleClearRecording()
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('handleStartRecording marks dirty so an in-progress recording forces a re-capture', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(false)
+
+      await composable.handleStartRecording()
+
+      expect(mockLoad3d.startRecording).toHaveBeenCalledTimes(1)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('handleCenterCameraOnModel marks dirty', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      setLoad3dOutputCache(mockNode, fakeCache)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(false)
+
+      composable.handleCenterCameraOnModel()
+
+      expect(mockLoad3d.centerCameraOnModel).toHaveBeenCalledTimes(1)
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+
+    it('handleSeek marks dirty when the animation has a duration', async () => {
+      const composable = useLoad3d(mockNode)
+      const containerRef = document.createElement('div')
+      await composable.initializeLoad3d(containerRef)
+      await nextTick()
+
+      const calls = vi.mocked(mockLoad3d.addEventListener!).mock.calls
+      const match = calls.find(([event]) => event === 'animationProgressChange')
+      const animationProgressHandler = match![1] as (d: {
+        progress: number
+        currentTime: number
+        duration: number
+      }) => void
+
+      animationProgressHandler({ progress: 0, currentTime: 0, duration: 10 })
+      setLoad3dOutputCache(mockNode, fakeCache)
+
+      composable.handleSeek(50)
+
+      expect(isLoad3dSceneDirty(mockNode)).toBe(true)
+    })
+  })
 })

src/composables/useLoad3d.ts

@@ -22,6 +22,7 @@ import type {
   GizmoMode,
   LightConfig,
   MaterialMode,
+  Model3DInfo,
   ModelConfig,
   SceneConfig,
   UpDirection
@@ -38,6 +39,38 @@ import { useLoad3dService } from '@/services/load3dService'
 
 type Load3dReadyCallback = (load3d: Load3d) => void
 export const nodeToLoad3dMap = new Map<LGraphNode, Load3d>()
+
+export type Load3dCachedOutput = {
+  image: string
+  mask: string
+  normal: string
+  camera_info: CameraState | null
+  recording: string
+  model_3d_info: Model3DInfo
+}
+
+const load3dSceneDirty = new WeakMap<LGraphNode, boolean>()
+const load3dOutputCache = new WeakMap<LGraphNode, Load3dCachedOutput>()
+
+export const markLoad3dSceneDirty = (node: LGraphNode | null): void => {
+  if (!node) return
+  load3dSceneDirty.set(node, true)
+}
+
+export const isLoad3dSceneDirty = (node: LGraphNode): boolean =>
+  load3dSceneDirty.get(node) !== false
+
+export const getLoad3dOutputCache = (
+  node: LGraphNode
+): Load3dCachedOutput | undefined => load3dOutputCache.get(node)
+
+export const setLoad3dOutputCache = (
+  node: LGraphNode,
+  output: Load3dCachedOutput
+): void => {
+  load3dOutputCache.set(node, output)
+  load3dSceneDirty.set(node, false)
+}
 const pendingCallbacks = new Map<LGraphNode, Load3dReadyCallback[]>()
 const persistentReadyCallbacks = new Map<LGraphNode, Load3dReadyCallback[]>()
 
@@ -69,6 +102,11 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
   let load3d: Load3d | null = null
   let isFirstModelLoad = true
 
+  const markDirty = () => {
+    const rawNode = toRaw(nodeRef.value)
+    if (rawNode) markLoad3dSceneDirty(rawNode as LGraphNode)
+  }
+
   const debouncedHandleResize = useDebounceFn(() => {
     load3d?.handleResize()
   }, 150)
@@ -371,6 +409,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
     if (n) {
       n.properties['Light Config'] = lightConfig.value
     }
+    markDirty()
   }
 
   const waitForLoad3d = (callback: Load3dReadyCallback) => {
@@ -415,6 +454,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
       if (nodeRef.value) {
         nodeRef.value.properties['Scene Config'] = newValue
       }
+      markDirty()
     },
     { deep: true }
   )
@@ -455,6 +495,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
       if (nodeRef.value) {
         nodeRef.value.properties['Model Config'] = newValue
       }
+      markDirty()
     },
     { deep: true }
   )
@@ -488,6 +529,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
         load3d.toggleCamera(newValue.cameraType)
         load3d.setFOV(newValue.fov)
       }
+      markDirty()
     },
     { deep: true }
   )
@@ -547,18 +589,21 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
     if (load3d) {
       load3d.toggleAnimation(newValue)
     }
+    markDirty()
   })
 
   watch(selectedSpeed, (newValue) => {
     if (load3d && newValue) {
       load3d.setAnimationSpeed(newValue)
     }
+    markDirty()
   })
 
   watch(selectedAnimation, (newValue) => {
     if (load3d && newValue !== undefined) {
       load3d.updateSelectedAnimation(newValue)
     }
+    markDirty()
   })
 
   const handleMouseEnter = () => {
@@ -573,6 +618,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
     if (load3d) {
       await load3d.startRecording()
       isRecording.value = true
+      markDirty()
     }
   }
 
@@ -582,6 +628,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
       isRecording.value = false
       recordingDuration.value = load3d.getRecordingDuration()
       hasRecording.value = recordingDuration.value > 0
+      if (hasRecording.value) markDirty()
     }
   }
 
@@ -598,6 +645,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
       load3d.clearRecording()
       hasRecording.value = false
       recordingDuration.value = 0
+      markDirty()
     }
   }
 
@@ -605,6 +653,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
     if (load3d && animationDuration.value > 0) {
       const time = (progress / 100) * animationDuration.value
       load3d.setAnimationTime(time)
+      markDirty()
     }
   }
 
@@ -936,6 +985,7 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
             state: cameraState
           }
         }
+        markLoad3dSceneDirty(node)
       }
     },
     gizmoTransformChange: (data: GizmoConfig) => {
@@ -976,7 +1026,9 @@ export const useLoad3d = (nodeOrRef: MaybeRef<LGraphNode | null>) => {
   }
 
   const handleCenterCameraOnModel = () => {
-    load3d?.centerCameraOnModel()
+    if (!load3d) return
+    load3d.centerCameraOnModel()
+    markDirty()
   }
 
   const handleResetGizmoTransform = () => {

src/composables/useTransformCompatOverlayProps.ts

@@ -1,55 +0,0 @@
-import type { HintedString } from '@primevue/core'
-import type { InjectionKey } from 'vue'
-import { computed, inject } from 'vue'
-
-/**
- * Options for configuring transform-compatible overlay props
- */
-interface TransformCompatOverlayOptions {
-  /**
-   * Where to append the overlay. 'self' keeps overlay within component
-   * for proper transform inheritance, 'body' teleports to document body
-   */
-  appendTo?: HintedString<'body' | 'self'> | undefined | HTMLElement
-  // Future: other props needed for transform compatibility
-  // scrollTarget?: string | HTMLElement
-  // autoZIndex?: boolean
-}
-
-export const OverlayAppendToKey: InjectionKey<
-  HintedString<'body' | 'self'> | undefined | HTMLElement
-> = Symbol('OverlayAppendTo')
-
-/**
- * Composable that provides props to make PrimeVue overlay components
- * compatible with CSS-transformed parent elements.
- *
- * Vue nodes use CSS transforms for positioning/scaling. PrimeVue overlay
- * components (Select, MultiSelect, TreeSelect, etc.) teleport to document
- * body by default, breaking transform inheritance. This composable provides
- * the necessary props to keep overlays within their component elements.
- *
- * @param overrides - Optional overrides for specific use cases
- * @returns Computed props object to spread on PrimeVue overlay components
- *
- * @example
- * ```vue
- * <template>
- *   <Select v-bind="overlayProps" />
- * </template>
- *
- * <script setup>
- * const overlayProps = useTransformCompatOverlayProps()
- * </script>
- * ```
- */
-export function useTransformCompatOverlayProps(
-  overrides: TransformCompatOverlayOptions = {}
-) {
-  const injectedAppendTo = inject(OverlayAppendToKey, undefined)
-
-  return computed(() => ({
-    appendTo: injectedAppendTo ?? ('self' as const),
-    ...overrides
-  }))
-}

src/extensions/core/load3d.test.ts

@@ -38,13 +38,27 @@ vi.mock('@/services/load3dService', () => ({
   })
 }))
 
-vi.mock('@/composables/useLoad3d', () => ({
-  useLoad3d: () => ({
-    waitForLoad3d: waitForLoad3dMock,
-    onLoad3dReady: onLoad3dReadyMock
-  }),
-  nodeToLoad3dMap
-}))
+vi.mock('@/composables/useLoad3d', () => {
+  const sceneDirty = new WeakMap<LGraphNode, boolean>()
+  const outputCache = new WeakMap<LGraphNode, unknown>()
+  return {
+    useLoad3d: () => ({
+      waitForLoad3d: waitForLoad3dMock,
+      onLoad3dReady: onLoad3dReadyMock
+    }),
+    nodeToLoad3dMap,
+    markLoad3dSceneDirty: (node: LGraphNode | null) => {
+      if (!node) return
+      sceneDirty.set(node, true)
+    },
+    isLoad3dSceneDirty: (node: LGraphNode) => sceneDirty.get(node) !== false,
+    getLoad3dOutputCache: (node: LGraphNode) => outputCache.get(node),
+    setLoad3dOutputCache: (node: LGraphNode, value: unknown) => {
+      outputCache.set(node, value)
+      sceneDirty.set(node, false)
+    }
+  }
+})
 
 vi.mock('@/extensions/core/load3d/Load3DConfiguration', () => ({
   default: class {
@@ -173,7 +187,7 @@ function makePreview3DAdvancedNode(
     constructor: { comfyClass: overrides.comfyClass ?? 'Preview3DAdvanced' },
     size: [400, 550],
     setSize: vi.fn(),
-    widgets: overrides.widgets ?? [{ name: 'image', value: '' }],
+    widgets: overrides.widgets ?? [{ name: 'viewport_state', value: '' }],
     properties: overrides.properties ?? {}
   } as unknown as LGraphNode
 }
@@ -482,13 +496,16 @@ describe('Comfy.Load3D.nodeCreated', () => {
 
     await load3DExt.nodeCreated(node)
 
-    expect(configureMock).toHaveBeenCalledWith({
-      loadFolder: 'input',
-      modelWidget: widgets[0],
-      cameraState: undefined,
-      width: widgets[1],
-      height: widgets[2]
-    })
+    expect(configureMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        loadFolder: 'input',
+        modelWidget: widgets[0],
+        cameraState: undefined,
+        width: widgets[1],
+        height: widgets[2],
+        onSceneInvalidated: expect.any(Function)
+      })
+    )
   })
 
   it('attaches a serializeValue function to the scene widget', async () => {
@@ -783,9 +800,9 @@ describe('Comfy.Preview3DAdvanced.nodeCreated', () => {
     expect(load3dInstance.setCameraState).not.toHaveBeenCalled()
   })
 
-  it('attaches a camera-only serializeValue to the image widget', async () => {
+  it('attaches a camera-only serializeValue to the viewport_state widget', async () => {
     const { preview3DAdvancedExt } = await loadExtensionsFresh()
-    const widgets: FakeWidget[] = [{ name: 'image', value: '' }]
+    const widgets: FakeWidget[] = [{ name: 'viewport_state', value: '' }]
     const node = makePreview3DAdvancedNode({ widgets })
 
     await preview3DAdvancedExt.nodeCreated(node)
@@ -795,7 +812,7 @@ describe('Comfy.Preview3DAdvanced.nodeCreated', () => {
 
   it('serializeValue returns live camera_info plus empty media fields, omitting model_3d_info when none', async () => {
     const { preview3DAdvancedExt } = await loadExtensionsFresh()
-    const widgets: FakeWidget[] = [{ name: 'image', value: '' }]
+    const widgets: FakeWidget[] = [{ name: 'viewport_state', value: '' }]
     const node = makePreview3DAdvancedNode({ widgets })
 
     const load3d = makeLoad3dMock()
@@ -819,7 +836,7 @@ describe('Comfy.Preview3DAdvanced.nodeCreated', () => {
 
   it('serializeValue wraps a present getModelInfo result in a single-element list', async () => {
     const { preview3DAdvancedExt } = await loadExtensionsFresh()
-    const widgets: FakeWidget[] = [{ name: 'image', value: '' }]
+    const widgets: FakeWidget[] = [{ name: 'viewport_state', value: '' }]
     const node = makePreview3DAdvancedNode({ widgets })
 
     const load3d = makeLoad3dMock()
@@ -1014,3 +1031,95 @@ describe('Comfy.Preview3DAdvanced.getNodeMenuItems', () => {
     ])
   })
 })
+
+describe('Comfy.Load3D scene widget serializeValue caching', () => {
+  beforeEach(setupBaseMocks)
+
+  function makeFullFakeLoad3d() {
+    return {
+      getCurrentCameraType: vi.fn(() => 'perspective'),
+      cameraManager: { perspectiveCamera: { fov: 35 } },
+      getCameraState: vi.fn(() => ({ position: { x: 0, y: 0, z: 0 } })),
+      stopRecording: vi.fn(),
+      captureScene: vi.fn(async () => ({
+        scene: 'scene-data',
+        mask: 'mask-data',
+        normal: 'normal-data'
+      })),
+      handleResize: vi.fn(),
+      getModelInfo: vi.fn(() => null),
+      getRecordingData: vi.fn(() => null)
+    }
+  }
+
+  async function setup() {
+    const { load3DExt } = await loadExtensionsFresh()
+    const useLoad3dModule = await import('@/composables/useLoad3d')
+    const utilsModule = await import('@/extensions/core/load3d/Load3dUtils')
+    const uploadTempImage = utilsModule.default.uploadTempImage as ReturnType<
+      typeof vi.fn
+    >
+    let counter = 0
+    uploadTempImage.mockImplementation(
+      async (_data: unknown, kind: string) => ({
+        name: `${kind}-${++counter}.png`
+      })
+    )
+
+    const widgets: FakeWidget[] = [
+      { name: 'model_file', value: 'm.glb' },
+      { name: 'width', value: 256 },
+      { name: 'height', value: 256 },
+      { name: 'image', value: '' }
+    ]
+    const node = makeLoad3DNode({ widgets, properties: {} })
+    useLoad3dModule.nodeToLoad3dMap.set(node, makeFullFakeLoad3d() as never)
+
+    await load3DExt.nodeCreated(node)
+    const serialize = widgets[3].serializeValue! as () => Promise<{
+      image: string
+    } | null>
+
+    return { node, serialize, uploadTempImage, useLoad3dModule }
+  }
+
+  it('reuses the cached output when the scene has not been dirtied', async () => {
+    const { node, serialize, uploadTempImage, useLoad3dModule } = await setup()
+
+    const first = await serialize()
+    expect(uploadTempImage).toHaveBeenCalledTimes(3)
+    expect(first?.image).toBe('threed/scene-1.png [temp]')
+    expect(useLoad3dModule.isLoad3dSceneDirty(node)).toBe(false)
+    expect(useLoad3dModule.getLoad3dOutputCache(node)).toBe(first)
+
+    const second = await serialize()
+    expect(uploadTempImage).toHaveBeenCalledTimes(3)
+    expect(second).toBe(first)
+  })
+
+  it('re-captures after the scene is marked dirty', async () => {
+    const { node, serialize, uploadTempImage, useLoad3dModule } = await setup()
+
+    await serialize()
+    expect(uploadTempImage).toHaveBeenCalledTimes(3)
+
+    useLoad3dModule.markLoad3dSceneDirty(node)
+
+    const refreshed = await serialize()
+    expect(uploadTempImage).toHaveBeenCalledTimes(6)
+    expect(refreshed?.image).toBe('threed/scene-4.png [temp]')
+  })
+
+  it('returns null when no load3d instance is registered for the node', async () => {
+    const { load3DExt } = await loadExtensionsFresh()
+    const widgets: FakeWidget[] = [
+      { name: 'model_file', value: 'm.glb' },
+      { name: 'width', value: 256 },
+      { name: 'height', value: 256 },
+      { name: 'image', value: '' }
+    ]
+    const node = makeLoad3DNode({ widgets })
+    await load3DExt.nodeCreated(node)
+    expect(await widgets[3].serializeValue!()).toBeNull()
+  })
+})

src/extensions/core/load3d.ts

@@ -2,7 +2,15 @@ import { nextTick } from 'vue'
 
 import Load3D from '@/components/load3d/Load3D.vue'
 import Load3DViewerContent from '@/components/load3d/Load3dViewerContent.vue'
-import { nodeToLoad3dMap, useLoad3d } from '@/composables/useLoad3d'
+import {
+  type Load3dCachedOutput,
+  getLoad3dOutputCache,
+  isLoad3dSceneDirty,
+  markLoad3dSceneDirty,
+  nodeToLoad3dMap,
+  setLoad3dOutputCache,
+  useLoad3d
+} from '@/composables/useLoad3d'
 import { createExportMenuItems } from '@/extensions/core/load3d/exportMenuHelper'
 import type {
   CameraConfig,
@@ -96,6 +104,8 @@ async function handleModelUpload(files: FileList, node: LGraphNode) {
 
       modelWidget.value = uploadPath
     }
+
+    markLoad3dSceneDirty(node)
   } catch (error) {
     console.error('Model upload failed:', error)
     useToastStore().addAlert(t('toastMessages.fileUploadFailed'))
@@ -113,6 +123,7 @@ async function handleResourcesUpload(files: FileList, node: LGraphNode) {
       : '3d'
 
     await Load3dUtils.uploadMultipleFiles(files, subfolder)
+    markLoad3dSceneDirty(node)
   } catch (error) {
     console.error('Extra resources upload failed:', error)
     useToastStore().addAlert(t('toastMessages.extraResourcesUploadFailed'))
@@ -270,8 +281,16 @@ useExtensionService().registerExtension({
     }
   ],
   getCustomWidgets() {
+    const VIEWPORT_STATE_NODES = new Set([
+      'Preview3DAdvanced',
+      'PreviewGaussianSplat',
+      'PreviewPointCloud'
+    ])
     return {
       LOAD_3D(node) {
+        const inputName = VIEWPORT_STATE_NODES.has(node.constructor.comfyClass)
+          ? 'viewport_state'
+          : 'image'
         const hasModelFileWidget = node.widgets?.some(
           (w) => w.name === 'model_file'
         )
@@ -311,14 +330,15 @@ useExtensionService().registerExtension({
             if (modelWidget) {
               modelWidget.value = LOAD3D_NONE_MODEL
             }
+            markLoad3dSceneDirty(node)
           })
         }
 
         const widget = new ComponentWidgetImpl({
           node: node,
-          name: 'image',
+          name: inputName,
           component: Load3D,
-          inputSpec: inputSpecLoad3D,
+          inputSpec: { ...inputSpecLoad3D, name: inputName },
           options: {}
         })
 
@@ -369,7 +389,8 @@ useExtensionService().registerExtension({
         modelWidget,
         cameraState,
         width,
-        height
+        height,
+        onSceneInvalidated: () => markLoad3dSceneDirty(node)
       })
     })
 
@@ -387,6 +408,11 @@ useExtensionService().registerExtension({
             return null
           }
 
+          if (!isLoad3dSceneDirty(node)) {
+            const cached = getLoad3dOutputCache(node)
+            if (cached) return cached
+          }
+
           const cameraConfig: CameraConfig = (node.properties[
             'Camera Config'
           ] as CameraConfig | undefined) || {
@@ -418,7 +444,7 @@ useExtensionService().registerExtension({
           const modelInfo = currentLoad3d.getModelInfo()
           const model_3d_info: Model3DInfo = modelInfo ? [modelInfo] : []
 
-          const returnVal = {
+          const returnVal: Load3dCachedOutput = {
             image: `threed/${data.name} [temp]`,
             mask: `threed/${dataMask.name} [temp]`,
             normal: `threed/${dataNormal.name} [temp]`,
@@ -435,9 +461,11 @@ useExtensionService().registerExtension({
             const [recording] = await Promise.all([
               Load3dUtils.uploadTempImage(recordingData, 'recording', 'mp4')
             ])
-            returnVal['recording'] = `threed/${recording.name} [temp]`
+            returnVal.recording = `threed/${recording.name} [temp]`
           }
 
+          setLoad3dOutputCache(node, returnVal)
+
           return returnVal
         }
       }
@@ -715,7 +743,7 @@ useExtensionService().registerExtension({
     })
 
     useLoad3d(node).waitForLoad3d((load3d) => {
-      const sceneWidget = node.widgets?.find((w) => w.name === 'image')
+      const sceneWidget = node.widgets?.find((w) => w.name === 'viewport_state')
       if (!sceneWidget) return
 
       const resolveLoad3d = () => nodeToLoad3dMap.get(node) ?? load3d

src/extensions/core/load3d/Load3DConfiguration.test.ts

@@ -682,3 +682,138 @@ describe('Load3DConfiguration "none" model handling', () => {
     })
   })
 })
+
+describe('Load3DConfiguration.onSceneInvalidated', () => {
+  function makeLoad3dMock(): Load3d {
+    return {
+      loadModel: vi.fn().mockResolvedValue(undefined),
+      clearModel: vi.fn(),
+      setUpDirection: vi.fn(),
+      setMaterialMode: vi.fn(),
+      setTargetSize: vi.fn(),
+      setCameraState: vi.fn(),
+      toggleGrid: vi.fn(),
+      setBackgroundColor: vi.fn(),
+      setBackgroundImage: vi.fn().mockResolvedValue(undefined),
+      setBackgroundRenderMode: vi.fn(),
+      toggleCamera: vi.fn(),
+      setFOV: vi.fn(),
+      setLightIntensity: vi.fn(),
+      setHDRIIntensity: vi.fn(),
+      setHDRIAsBackground: vi.fn(),
+      setHDRIEnabled: vi.fn(),
+      emitModelReady: vi.fn()
+    } as unknown as Load3d
+  }
+
+  async function flush() {
+    await new Promise<void>((resolve) => setTimeout(resolve, 0))
+  }
+
+  beforeEach(() => {
+    vi.mocked(Load3dUtils.splitFilePath).mockReturnValue(['', 'model.glb'])
+    vi.mocked(Load3dUtils.getResourceURL).mockReturnValue('/view')
+  })
+
+  it('width.callback invokes onSceneInvalidated', async () => {
+    const onSceneInvalidated = vi.fn()
+    const width = { value: 1024 } as unknown as IBaseWidget
+    const height = { value: 1024 } as unknown as IBaseWidget
+    const config = new Load3DConfiguration(makeLoad3dMock())
+
+    config.configure({
+      modelWidget: { value: 'none' } as unknown as IBaseWidget,
+      loadFolder: 'input',
+      width,
+      height,
+      onSceneInvalidated
+    })
+    await flush()
+
+    width.callback!(2048)
+
+    expect(onSceneInvalidated).toHaveBeenCalledTimes(1)
+  })
+
+  it('height.callback invokes onSceneInvalidated', async () => {
+    const onSceneInvalidated = vi.fn()
+    const width = { value: 1024 } as unknown as IBaseWidget
+    const height = { value: 1024 } as unknown as IBaseWidget
+    const config = new Load3DConfiguration(makeLoad3dMock())
+
+    config.configure({
+      modelWidget: { value: 'none' } as unknown as IBaseWidget,
+      loadFolder: 'input',
+      width,
+      height,
+      onSceneInvalidated
+    })
+    await flush()
+
+    height.callback!(2048)
+
+    expect(onSceneInvalidated).toHaveBeenCalledTimes(1)
+  })
+
+  it('model_file widget callback invokes onSceneInvalidated after the model loads', async () => {
+    const onSceneInvalidated = vi.fn()
+    const modelWidget = { value: 'none' } as unknown as IBaseWidget
+    const config = new Load3DConfiguration(makeLoad3dMock())
+
+    config.configure({
+      modelWidget,
+      loadFolder: 'input',
+      onSceneInvalidated
+    })
+    await flush()
+
+    modelWidget.value = 'model.glb'
+    await flush()
+
+    expect(onSceneInvalidated).toHaveBeenCalled()
+  })
+
+  it('preserves any pre-existing model widget callback alongside the invalidation hook', async () => {
+    const onSceneInvalidated = vi.fn()
+    const original = vi.fn()
+    const modelWidget = {
+      value: 'none',
+      callback: original
+    } as unknown as IBaseWidget
+    const config = new Load3DConfiguration(makeLoad3dMock())
+
+    config.configure({
+      modelWidget,
+      loadFolder: 'input',
+      onSceneInvalidated
+    })
+    await flush()
+
+    modelWidget.value = 'model.glb'
+    await flush()
+
+    expect(original).toHaveBeenCalledWith('model.glb')
+    expect(onSceneInvalidated).toHaveBeenCalled()
+  })
+
+  it('callbacks remain safe when onSceneInvalidated is omitted', async () => {
+    const width = { value: 1024 } as unknown as IBaseWidget
+    const height = { value: 1024 } as unknown as IBaseWidget
+    const modelWidget = { value: 'none' } as unknown as IBaseWidget
+    const config = new Load3DConfiguration(makeLoad3dMock())
+
+    config.configure({
+      modelWidget,
+      loadFolder: 'input',
+      width,
+      height
+    })
+    await flush()
+
+    expect(() => width.callback!(2048)).not.toThrow()
+    expect(() => height.callback!(2048)).not.toThrow()
+    expect(() => {
+      modelWidget.value = 'model.glb'
+    }).not.toThrow()
+  })
+})

src/extensions/core/load3d/Load3DConfiguration.ts

@@ -23,6 +23,14 @@ type Load3DConfigurationSettings = {
   height?: IBaseWidget
   bgImagePath?: string
   silentOnNotFound?: boolean
+  /**
+   * Called when a user-driven change to one of the wired widgets
+   * (model_file, width, height) makes the previously captured scene stale.
+   * Backend caching covers these inputs by themselves; this hook lets the
+   * caller invalidate any frontend-side capture cache so the next serialize
+   * re-renders at the new state.
+   */
+  onSceneInvalidated?: () => void
 }
 
 const ANNOTATED_FILENAME_PATTERN = / \[(input|output|temp)\]$/
@@ -63,22 +71,33 @@ class Load3DConfiguration {
       setting.modelWidget,
       setting.loadFolder,
       setting.cameraState,
-      setting.silentOnNotFound ?? false
+      setting.silentOnNotFound ?? false,
+      setting.onSceneInvalidated
+    )
+    this.setupTargetSize(
+      setting.width,
+      setting.height,
+      setting.onSceneInvalidated
     )
-    this.setupTargetSize(setting.width, setting.height)
     this.setupDefaultProperties(setting.bgImagePath)
   }
 
-  private setupTargetSize(width?: IBaseWidget, height?: IBaseWidget) {
+  private setupTargetSize(
+    width?: IBaseWidget,
+    height?: IBaseWidget,
+    onSceneInvalidated?: () => void
+  ) {
     if (width && height) {
       this.load3d.setTargetSize(width.value as number, height.value as number)
 
       width.callback = (value: number) => {
         this.load3d.setTargetSize(value, height.value as number)
+        onSceneInvalidated?.()
       }
 
       height.callback = (value: number) => {
         this.load3d.setTargetSize(width.value as number, value)
+        onSceneInvalidated?.()
       }
     }
   }
@@ -103,7 +122,8 @@ class Load3DConfiguration {
     modelWidget: IBaseWidget,
     loadFolder: string,
     cameraState?: CameraState,
-    silentOnNotFound: boolean = false
+    silentOnNotFound: boolean = false,
+    onSceneInvalidated?: () => void
   ) {
     const onModelWidgetUpdate = this.createModelUpdateHandler(
       loadFolder,
@@ -137,6 +157,8 @@ class Load3DConfiguration {
       if (originalCallback) {
         originalCallback(value)
       }
+
+      onSceneInvalidated?.()
     }
   }
 

src/extensions/core/load3dPreviewExtensions.test.ts

@@ -186,7 +186,7 @@ describe('Comfy.PreviewGaussianSplat.nodeCreated', () => {
 
     expect(node.properties['Last Time Model File']).toBe('scene.ply')
     expect(configureForSaveMeshMock).toHaveBeenLastCalledWith(
-      'output',
+      'temp',
       'scene.ply',
       expect.objectContaining({ silentOnNotFound: true })
     )
@@ -231,7 +231,7 @@ describe('Comfy.PreviewGaussianSplat.nodeCreated', () => {
     const node = makePreviewNode({
       widgets: [
         { name: 'model_file', value: '' },
-        { name: 'image', value: '' },
+        { name: 'viewport_state', value: '' },
         widthWidget,
         heightWidget
       ]
@@ -262,7 +262,7 @@ describe('Comfy.PreviewGaussianSplat.nodeCreated', () => {
     )
     const sceneWidget: FakeWidget & {
       serializeValue?: () => Promise<unknown>
-    } = { name: 'image', value: '' }
+    } = { name: 'viewport_state', value: '' }
     const node = makePreviewNode({
       widgets: [{ name: 'model_file', value: '' }, sceneWidget]
     })
@@ -318,7 +318,7 @@ describe('Comfy.PreviewPointCloud.nodeCreated', () => {
 
     expect(node.properties['Last Time Model File']).toBe('pointcloud.ply')
     expect(configureForSaveMeshMock).toHaveBeenLastCalledWith(
-      'output',
+      'temp',
       'pointcloud.ply',
       expect.objectContaining({ silentOnNotFound: true })
     )

src/extensions/core/load3dPreviewExtensions.ts

@@ -46,7 +46,7 @@ function applyResultToLoad3d(
   }
 
   const config = new Load3DConfiguration(load3d, node.properties)
-  config.configureForSaveMesh('output', normalizedPath, {
+  config.configureForSaveMesh('temp', normalizedPath, {
     silentOnNotFound: true
   })
 
@@ -119,7 +119,7 @@ function createPreview3DExtension(
         if (!lastTimeModelFile) return
 
         const config = new Load3DConfiguration(load3d, node.properties)
-        config.configureForSaveMesh('output', lastTimeModelFile as string, {
+        config.configureForSaveMesh('temp', lastTimeModelFile as string, {
           silentOnNotFound: true
         })
 
@@ -136,7 +136,9 @@ function createPreview3DExtension(
       })
 
       waitForLoad3d((load3d) => {
-        const sceneWidget = node.widgets?.find((w) => w.name === 'image')
+        const sceneWidget = node.widgets?.find(
+          (w) => w.name === 'viewport_state'
+        )
         const widthWidget = node.widgets?.find((w) => w.name === 'width')
         const heightWidget = node.widgets?.find((w) => w.name === 'height')
 

src/locales/en/main.json

@@ -268,6 +268,7 @@
     "title": "Title",
     "edit": "Edit",
     "copy": "Copy",
+    "details": "Details",
     "copyJobId": "Copy Job ID",
     "copied": "Copied",
     "relativeTime": {
@@ -350,6 +351,11 @@
     "nodeSlotsError": "Node Slots Error",
     "nodeWidgetsError": "Node Widgets Error",
     "frameNodes": "Frame Nodes",
+    "arrange": "Arrange",
+    "arrangeVertically": "Arrange vertically",
+    "arrangeHorizontally": "Arrange horizontally",
+    "arrangeAsGrid": "Arrange as grid",
+    "arrangeSpacing": "Arrangement spacing",
     "listening": "Listening...",
     "ready": "Ready",
     "play": "Play",
@@ -3549,6 +3555,7 @@
     "parameters": "Parameters",
     "nodes": "Nodes",
     "info": "Info",
+    "infoFor": "Info for {item}",
     "color": "Node color",
     "pinned": "Pinned",
     "bypass": "Bypass",
@@ -3568,6 +3575,7 @@
     "hideInput": "Hide input",
     "showInput": "Show input",
     "locateNode": "Locate node on canvas",
+    "locateNodeFor": "Locate {item}",
     "favorites": "FAVORITED INPUTS",
     "favoritesNone": "NO FAVORITED INPUTS",
     "favoritesNoneTooltip": "Star widgets to quickly access them without selecting nodes",
@@ -3601,6 +3609,7 @@
     "errors": "Errors",
     "noErrors": "No errors",
     "executionErrorOccurred": "An error occurred during execution. Check the Errors tab for details.",
+    "errorLog": "Error log",
     "findOnGithubTooltip": "Search GitHub issues for related problems",
     "getHelpTooltip": "Report this error and we'll help you resolve it",
     "enterSubgraph": "Enter subgraph",
@@ -3805,6 +3814,15 @@
         "toastTitle": "Invalid input",
         "toastMessage": "{nodeName} rejected the value for {inputName}."
       },
+      "unknown_validation_error": {
+        "title": "Validation failed",
+        "message": "A node returned a validation error ComfyUI does not recognize.",
+        "details": "{nodeName} returned an unrecognized validation error: {errorType}",
+        "detailsWithRawDetails": "{nodeName} returned an unrecognized validation error ({errorType}): {rawDetails}",
+        "itemLabel": "{nodeName}",
+        "toastTitle": "Validation failed",
+        "toastMessage": "{nodeName} returned an unrecognized validation error."
+      },
       "exception_during_inner_validation": {
         "title": "Validation failed",
         "message": "The workflow couldn't validate a connected node.",

src/platform/errorCatalog/catalogIds.ts

@@ -2,6 +2,7 @@
 // 1:1 to an API error type. Simple validation mappings stay with the validation
 // resolver.
 export const MISSING_CONNECTION_CATALOG_ID = 'missing_connection'
+export const UNKNOWN_VALIDATION_ERROR_CATALOG_ID = 'unknown_validation_error'
 export const EXECUTION_FAILED_CATALOG_ID = 'execution_failed'
 export const IMAGE_NOT_LOADED_CATALOG_ID = 'image_not_loaded'
 export const OUT_OF_MEMORY_CATALOG_ID = 'out_of_memory'

src/platform/errorCatalog/errorMessageResolver.test.ts

@@ -144,6 +144,26 @@ describe('errorMessageResolver', () => {
     })
   })
 
+  it('resolves unknown validation errors to fallback catalog copy', () => {
+    expect(
+      resolveRunErrorMessage({
+        kind: 'node_validation',
+        error: nodeValidationError('value_not_valid', undefined, 'some detail'),
+        nodeDisplayName: 'KSampler'
+      })
+    ).toEqual({
+      catalogId: 'unknown_validation_error',
+      displayTitle: 'Validation failed',
+      displayMessage:
+        'A node returned a validation error ComfyUI does not recognize.',
+      displayDetails:
+        'KSampler returned an unrecognized validation error (value_not_valid): some detail',
+      displayItemLabel: 'KSampler',
+      toastTitle: 'Validation failed',
+      toastMessage: 'KSampler returned an unrecognized validation error.'
+    })
+  })
+
   it('falls back to raw API copy when catalog keys are missing in the active locale', () => {
     const originalLocale = i18n.global.locale.value
     const originalKoMessages = i18n.global.getLocaleMessage('ko')

src/platform/errorCatalog/errorMessageResolver.ts

@@ -1,4 +1,8 @@
-import type { ResolvedErrorMessage, RunErrorMessageSource } from './types'
+import type {
+  ResolvedCatalogErrorMessage,
+  ResolvedErrorMessage,
+  RunErrorMessageSource
+} from './types'
 
 import { resolveExecutionErrorMessage } from './executionErrorResolver'
 import { resolveMissingErrorMessage } from './missingErrorResolver'
@@ -9,6 +13,15 @@ import { resolveNodeValidationErrorMessage } from './validationErrorResolver'
 // own the actual matching/copy rules so this file stays as the routing boundary.
 export { resolveMissingErrorMessage }
 
+export function resolveRunErrorMessage(
+  source: Extract<RunErrorMessageSource, { kind: 'node_validation' }>
+): ResolvedCatalogErrorMessage
+export function resolveRunErrorMessage(
+  source: Extract<RunErrorMessageSource, { kind: 'execution' }>
+): ResolvedCatalogErrorMessage
+export function resolveRunErrorMessage(
+  source: RunErrorMessageSource
+): ResolvedErrorMessage
 export function resolveRunErrorMessage(
   source: RunErrorMessageSource
 ): ResolvedErrorMessage {

src/platform/errorCatalog/executionErrorResolver.ts

@@ -1,4 +1,7 @@
-import type { ResolvedErrorMessage, RunErrorMessageSource } from './types'
+import type {
+  ResolvedCatalogErrorMessage,
+  RunErrorMessageSource
+} from './types'
 
 import { EXECUTION_FAILED_CATALOG_ID } from './catalogIds'
 import type { ErrorResolveContext } from './catalogI18n'
@@ -11,7 +14,7 @@ type ExecutionErrorResolveContext = Pick<ErrorResolveContext, 'nodeDisplayName'>
 export function resolveExecutionErrorMessage(
   error: Extract<RunErrorMessageSource, { kind: 'execution' }>['error'],
   context: ExecutionErrorResolveContext
-): ResolvedErrorMessage {
+): ResolvedCatalogErrorMessage {
   const exceptionMessage = error.exception_message.trim()
   const match = resolveRuntimeCatalogMatch({
     exceptionType: error.exception_type,

src/platform/errorCatalog/runtimeErrorCopy.ts

@@ -1,4 +1,4 @@
-import type { ResolvedErrorMessage } from './types'
+import type { ResolvedCatalogErrorMessage } from './types'
 
 import {
   normalizeNodeName,
@@ -19,7 +19,7 @@ export function resolveRuntimeCatalogCopy(
     params?: CatalogParams
     detailsFallback?: string
   } = {}
-): ResolvedErrorMessage {
+): ResolvedCatalogErrorMessage {
   const keyPrefix = `errorCatalog.runtimeErrors.${catalogId}`
   const nodeName = normalizeNodeName(context.nodeDisplayName)
   const params = { nodeName, ...options.params }
@@ -27,7 +27,7 @@ export function resolveRuntimeCatalogCopy(
     translateCatalogMessage(`${keyPrefix}.${suffix}`, fallback, params)
 
   const displayMessage = resolveMessage('message')
-  const result: ResolvedErrorMessage = {
+  const result: ResolvedCatalogErrorMessage = {
     catalogId,
     displayTitle: resolveMessage('title'),
     displayMessage

src/platform/errorCatalog/types.ts

@@ -25,6 +25,10 @@ export interface ResolvedErrorMessage {
   toastMessage?: string
 }
 
+export type ResolvedCatalogErrorMessage = ResolvedErrorMessage & {
+  catalogId: string
+}
+
 export type ResolvedMissingErrorMessage = ResolvedErrorMessage & {
   displayTitle: string
   displayMessage: string

src/platform/errorCatalog/validationErrorResolver.ts

@@ -1,8 +1,9 @@
-import type { NodeValidationError, ResolvedErrorMessage } from './types'
+import type { NodeValidationError, ResolvedCatalogErrorMessage } from './types'
 
 import {
   IMAGE_NOT_LOADED_CATALOG_ID,
-  MISSING_CONNECTION_CATALOG_ID
+  MISSING_CONNECTION_CATALOG_ID,
+  UNKNOWN_VALIDATION_ERROR_CATALOG_ID
 } from './catalogIds'
 import {
   normalizeNodeName,
@@ -117,6 +118,11 @@ const IMAGE_NOT_LOADED_VALIDATION_RULE = {
   copyKeys: DEFAULT_COPY_KEYS
 } satisfies ValidationCatalogRule
 
+const UNKNOWN_VALIDATION_ERROR_RULE = {
+  catalogId: UNKNOWN_VALIDATION_ERROR_CATALOG_ID,
+  itemLabel: 'node'
+} satisfies ValidationCatalogRule
+
 function getInputName(error: NodeValidationError): string {
   const inputName = error.extra_info?.input_name
   return (
@@ -228,7 +234,7 @@ function getValueSpecificCopyKeys(
 }
 
 function getRawDetailsCopyKeys(error: NodeValidationError): CopyKeys {
-  return error.details.trim()
+  return error.details?.trim()
     ? {
         detailsKey: 'detailsWithRawDetails',
         toastMessageKey: 'toastMessageWithRawDetails'
@@ -237,7 +243,7 @@ function getRawDetailsCopyKeys(error: NodeValidationError): CopyKeys {
 }
 
 function getRawDetailsOnlyCopyKeys(error: NodeValidationError): CopyKeys {
-  if (!error.details.trim()) return DEFAULT_COPY_KEYS
+  if (!error.details?.trim()) return DEFAULT_COPY_KEYS
 
   return {
     detailsKey: 'detailsWithRawDetails',
@@ -272,16 +278,17 @@ function resolveValidationCatalogCopy(
   context: ErrorResolveContext,
   localeKey: string,
   rule: ValidationCatalogRule
-): ResolvedErrorMessage {
+): ResolvedCatalogErrorMessage {
   const nodeName = normalizeNodeName(context.nodeDisplayName)
   const inputName = getInputName(error)
-  const trimmedDetails = error.details.trim()
+  const trimmedDetails = error.details?.trim() ?? ''
   const rawDetails =
     error.type === 'dependency_cycle'
       ? formatDependencyCycleDetails(trimmedDetails)
       : trimmedDetails
   const params = {
     ...getValidationParams(error, nodeName, inputName),
+    errorType: error.type || 'unknown',
     rawDetails
   }
   const keyPrefix = `errorCatalog.validationErrors.${localeKey}`
@@ -306,7 +313,7 @@ function resolveValidationCatalogCopy(
     ),
     displayDetails: translateOptionalCatalogMessage(
       `${keyPrefix}.${copyKeys.detailsKey}`,
-      error.details,
+      error.details ?? '',
       params
     ),
     displayItemLabel: translateCatalogMessage(
@@ -330,7 +337,7 @@ function resolveValidationCatalogCopy(
 export function resolveNodeValidationErrorMessage(
   error: NodeValidationError,
   context: ErrorResolveContext
-): ResolvedErrorMessage {
+): ResolvedCatalogErrorMessage {
   if (isImageNotLoadedValidationError(error)) {
     return resolveValidationCatalogCopy(
       error,
@@ -341,7 +348,17 @@ export function resolveNodeValidationErrorMessage(
   }
 
   const rule = VALIDATION_ERROR_RULES[error.type]
-  if (!rule) return {}
+  if (!rule) {
+    return resolveValidationCatalogCopy(
+      error,
+      context,
+      'unknown_validation_error',
+      {
+        ...UNKNOWN_VALIDATION_ERROR_RULE,
+        copyKeys: getRawDetailsOnlyCopyKeys(error)
+      }
+    )
+  }
 
   return resolveValidationCatalogCopy(error, context, error.type, rule)
 }

src/renderer/extensions/vueNodes/widgets/components/WidgetSelectDefault.vue

@@ -60,7 +60,7 @@
         </ComboboxTrigger>
       </ComboboxAnchor>
 
-      <ComboboxPortal :to="portalTarget" :disabled="isPortalDisabled">
+      <ComboboxPortal>
         <ComboboxContent
           data-capture-wheel="true"
           data-testid="widget-select-default-overlay"
@@ -161,7 +161,6 @@ import {
 import { computed, ref } from 'vue'
 import type { CSSProperties } from 'vue'
 
-import { useTransformCompatOverlayProps } from '@/composables/useTransformCompatOverlayProps'
 import { useRestoreFocusOnViewportPointer } from '@/renderer/extensions/vueNodes/widgets/composables/useRestoreFocusOnViewportPointer'
 import type { SimplifiedWidget } from '@/types/simplifiedWidget'
 import { cn } from '@comfyorg/tailwind-utils'
@@ -242,19 +241,10 @@ const searchInputContainerRef = ref<HTMLElement>()
 const { handleFocusOutside, handleViewportPointerDown } =
   useRestoreFocusOnViewportPointer(focusSearchInput)
 
-const transformCompatProps = useTransformCompatOverlayProps()
-
 const widgetOptions = computed(
   () => widget.options as SelectWidgetOptions | undefined
 )
 
-const portalTarget = computed(() => {
-  const appendTo = transformCompatProps.value.appendTo
-  return appendTo === 'self' ? undefined : appendTo
-})
-
-const isPortalDisabled = computed(() => !portalTarget.value)
-
 const disabled = computed(() => Boolean(widgetOptions.value?.disabled))
 const placeholder = computed(() => widgetOptions.value?.placeholder ?? '')
 const filterPlaceholder = computed(

src/renderer/extensions/vueNodes/widgets/components/WidgetSelectDropdown.vue

@@ -2,7 +2,6 @@
 import { computed, provide, ref, toRef } from 'vue'
 import { useI18n } from 'vue-i18n'
 
-import { useTransformCompatOverlayProps } from '@/composables/useTransformCompatOverlayProps'
 import { SUPPORTED_EXTENSIONS_ACCEPT } from '@/extensions/core/load3d/constants'
 import { useAssetsApi } from '@/platform/assets/composables/media/useAssetsApi'
 import { useFlatOutputAssets } from '@/platform/assets/composables/media/useFlatOutputAssets'
@@ -53,12 +52,9 @@ const outputMediaAssets = isCloud
   ? useFlatOutputAssets()
   : useAssetsApi('output')
 
-const transformCompatProps = useTransformCompatOverlayProps()
-
-const combinedProps = computed(() => ({
-  ...filterWidgetProps(props.widget.options, PANEL_EXCLUDED_PROPS),
-  ...transformCompatProps.value
-}))
+const combinedProps = computed(() =>
+  filterWidgetProps(props.widget.options, PANEL_EXCLUDED_PROPS)
+)
 
 const getAssetData = () => {
   const nodeType: string | undefined =

src/renderer/extensions/vueNodes/widgets/components/WidgetTextarea.vue

@@ -22,7 +22,7 @@
       :class="
         cn(
           WidgetInputBaseClass,
-          'size-full resize-none text-xs',
+          'size-full resize-none text-(length:--comfy-textarea-font-size) leading-normal',
           !hideLayoutField && 'pt-5',
           // Avoid overflow-auto when idle to prevent per-textarea compositing layers.
           'overflow-hidden hover:overflow-auto focus:overflow-auto'