diff --git a/browser_tests/fixtures/ComfyPage.ts b/browser_tests/fixtures/ComfyPage.ts
index fe439af20..a0901b5b5 100644
--- a/browser_tests/fixtures/ComfyPage.ts
+++ b/browser_tests/fixtures/ComfyPage.ts
@@ -13,6 +13,7 @@ import { ComfyTemplates } from '../helpers/templates'
 import { ComfyMouse } from './ComfyMouse'
 import { VueNodeHelpers } from './VueNodeHelpers'
 import { ComfyNodeSearchBox } from './components/ComfyNodeSearchBox'
+import { PropertiesPanel } from './components/PropertiesPanel'
 import { SettingDialog } from './components/SettingDialog'
 import {
   NodeLibrarySidebarTab,
@@ -26,32 +27,20 @@ dotenv.config()
 
 type WorkspaceStore = ReturnType<typeof useWorkspaceStore>
 
-class ComfyPropertiesPanel {
-  readonly root: Locator
-  readonly panelTitle: Locator
-  readonly searchBox: Locator
-
-  constructor(readonly page: Page) {
-    this.root = page.getByTestId('properties-panel')
-    this.panelTitle = this.root.locator('h3')
-    this.searchBox = this.root.getByPlaceholder('Search...')
-  }
-}
-
 class ComfyMenu {
   private _nodeLibraryTab: NodeLibrarySidebarTab | null = null
   private _workflowsTab: WorkflowsSidebarTab | null = null
   private _topbar: Topbar | null = null
 
   public readonly sideToolbar: Locator
-  public readonly propertiesPanel: ComfyPropertiesPanel
+  public readonly propertiesPanel: PropertiesPanel
   public readonly themeToggleButton: Locator
   public readonly saveButton: Locator
 
   constructor(public readonly page: Page) {
     this.sideToolbar = page.locator('.side-tool-bar-container')
     this.themeToggleButton = page.locator('.comfy-vue-theme-toggle')
-    this.propertiesPanel = new ComfyPropertiesPanel(page)
+    this.propertiesPanel = new PropertiesPanel(page)
     this.saveButton = page
       .locator('button[title="Save the current workflow"]')
       .nth(0)
@@ -1583,6 +1572,31 @@ export class ComfyPage {
       return window['app'].graph.nodes
     })
   }
+
+  async isInSubgraph(): Promise<boolean> {
+    return await this.page.evaluate(() => {
+      const graph = window['app'].canvas.graph
+      return graph?.constructor?.name === 'Subgraph'
+    })
+  }
+
+  async createNode(
+    nodeType: string,
+    position: Position = { x: 200, y: 200 }
+  ): Promise<NodeReference> {
+    const nodeId = await this.page.evaluate(
+      ({ nodeType, pos }) => {
+        const node = window['LiteGraph'].createNode(nodeType)
+        if (!node) throw new Error(`Failed to create node: ${nodeType}`)
+        window['app'].graph.add(node)
+        node.pos = [pos.x, pos.y]
+        return node.id
+      },
+      { nodeType, pos: position }
+    )
+    await this.nextFrame()
+    return this.getNodeRefById(nodeId)
+  }
   async waitForGraphNodes(count: number) {
     await this.page.waitForFunction((count) => {
       return window['app']?.canvas.graph?.nodes?.length === count
diff --git a/browser_tests/fixtures/components/PropertiesPanel.ts b/browser_tests/fixtures/components/PropertiesPanel.ts
new file mode 100644
index 000000000..05782495e
--- /dev/null
+++ b/browser_tests/fixtures/components/PropertiesPanel.ts
@@ -0,0 +1,97 @@
+import type { Locator, Page } from '@playwright/test'
+
+export class PropertiesPanel {
+  readonly root: Locator
+  readonly panelTitle: Locator
+  readonly searchBox: Locator
+
+  constructor(readonly page: Page) {
+    this.root = page.getByTestId('properties-panel')
+    this.panelTitle = this.root.locator('h3')
+    this.searchBox = this.root.getByPlaceholder('Search...')
+  }
+
+  async ensureOpen() {
+    const isOpen = await this.root.isVisible()
+    if (!isOpen) {
+      await this.page.getByLabel('Toggle properties panel').click()
+      await this.root.waitFor({ state: 'visible' })
+    }
+  }
+
+  async close() {
+    const isOpen = await this.root.isVisible()
+    if (isOpen) {
+      await this.page.getByLabel('Toggle properties panel').click()
+      await this.root.waitFor({ state: 'hidden' })
+    }
+  }
+
+  async promoteWidget(widgetName: string) {
+    await this.ensureOpen()
+
+    // Click on Advanced Inputs to expand it
+    const advancedInputsButton = this.root
+      .getByRole('button')
+      .filter({ hasText: /advanced inputs/i })
+    await advancedInputsButton.click()
+
+    // Find the widget row and click the more options button
+    const widgetRow = this.root
+      .locator('[class*="widget-item"], [class*="input-item"]')
+      .filter({ hasText: widgetName })
+      .first()
+
+    const moreButton = widgetRow.locator('button').filter({
+      has: this.page.locator('[class*="lucide--more-vertical"]')
+    })
+    await moreButton.click()
+
+    // Click "Show input" to promote the widget
+    await this.page.getByText('Show input').click()
+
+    // Close and reopen panel to refresh the UI state
+    await this.page.getByLabel('Toggle properties panel').click()
+    await this.page.getByLabel('Toggle properties panel').click()
+  }
+
+  async demoteWidget(widgetName: string) {
+    await this.ensureOpen()
+
+    // Check if INPUTS section content is already visible
+    const inputsContent = this.root.locator('div').filter({
+      hasText: new RegExp(`^${widgetName}$`)
+    })
+    const isInputsExpanded = await inputsContent.first().isVisible()
+
+    if (!isInputsExpanded) {
+      // Click on INPUTS section to expand it (where promoted widgets appear)
+      const inputsButton = this.root
+        .getByRole('button')
+        .filter({ hasText: /^inputs$/i })
+      await inputsButton.click()
+    }
+
+    // Find the widget row and click the more options button
+    const widgetRow = this.root
+      .locator('div')
+      .filter({ hasText: new RegExp(`^${widgetName}$`) })
+      .first()
+
+    await widgetRow.waitFor({ state: 'visible', timeout: 5000 })
+
+    // Find the more options button (the vertical dots icon button)
+    const moreButton = widgetRow
+      .locator('..')
+      .locator('button')
+      .filter({
+        has: this.page.locator('[class*="more-vertical"], [class*="lucide"]')
+      })
+      .first()
+
+    await moreButton.click()
+
+    // Click "Hide input" to demote the widget
+    await this.page.getByText('Hide input').click()
+  }
+}
diff --git a/browser_tests/fixtures/components/Topbar.ts b/browser_tests/fixtures/components/Topbar.ts
index c5e7c8155..49758b172 100644
--- a/browser_tests/fixtures/components/Topbar.ts
+++ b/browser_tests/fixtures/components/Topbar.ts
@@ -60,6 +60,11 @@ export class Topbar {
     await tab.locator('.close-button').click({ force: true })
   }
 
+  async switchToTab(index: number) {
+    const tabs = this.page.locator('.workflow-tabs button')
+    await tabs.nth(index).click()
+  }
+
   getSaveDialog(): Locator {
     return this.page.locator('.p-dialog-content input')
   }
diff --git a/browser_tests/fixtures/utils/litegraphUtils.ts b/browser_tests/fixtures/utils/litegraphUtils.ts
index ea5a0b78f..d804f7720 100644
--- a/browser_tests/fixtures/utils/litegraphUtils.ts
+++ b/browser_tests/fixtures/utils/litegraphUtils.ts
@@ -263,6 +263,26 @@ class NodeWidgetReference {
       [this.node.id, this.index] as const
     )
   }
+
+  async setValue(value: unknown, useCanvasGraph = false) {
+    await this.node.comfyPage.page.evaluate(
+      ([id, index, val, useCanvas]) => {
+        const graph = useCanvas
+          ? window['app'].canvas.graph
+          : window['app'].graph
+        const node = graph.getNodeById(id)
+        if (!node) throw new Error(`Node ${id} not found.`)
+        const widget = node.widgets[index]
+        if (!widget) throw new Error(`Widget ${index} not found.`)
+        widget.value = val
+        if (widget.callback) {
+          widget.callback(val, window['app'].canvas, node, null, null)
+        }
+      },
+      [this.node.id, this.index, value, useCanvasGraph] as const
+    )
+    await this.node.comfyPage.nextFrame()
+  }
 }
 export class NodeReference {
   constructor(
@@ -339,8 +359,43 @@ export class NodeReference {
   async getWidget(index: number) {
     return new NodeWidgetReference(index, this)
   }
+
+  async getWidgetByName(
+    name: string,
+    useCanvasGraph = false
+  ): Promise<NodeWidgetReference | null> {
+    const index = await this.comfyPage.page.evaluate(
+      ([id, widgetName, useCanvas]) => {
+        const graph = useCanvas
+          ? window['app'].canvas.graph
+          : window['app'].graph
+        const node = graph.getNodeById(id)
+        if (!node?.widgets) return -1
+        return node.widgets.findIndex(
+          (w: { name: string }) => w.name === widgetName
+        )
+      },
+      [this.id, name, useCanvasGraph] as const
+    )
+    if (index === -1) return null
+    return new NodeWidgetReference(index, this)
+  }
+
+  async getWidgets(): Promise<
+    Array<{ name: string; visible: boolean; value: unknown }>
+  > {
+    return await this.comfyPage.page.evaluate((id) => {
+      const node = window['app'].graph.getNodeById(id)
+      if (!node?.widgets) return []
+
+      return node.widgets.map((w) => {
+        const isHidden = w.hidden === true || w.options?.hidden === true
+        return { name: w.name, visible: !isHidden, value: w.value }
+      })
+    }, this.id)
+  }
   async click(
-    position: 'title' | 'collapse',
+    position: 'title' | 'collapse' | 'subgraph',
     options?: Parameters<Page['click']>[1] & { moveMouseToEmptyArea?: boolean }
   ) {
     const nodePos = await this.getPosition()
@@ -353,6 +408,9 @@ export class NodeReference {
       case 'collapse':
         clickPos = { x: nodePos.x + 5, y: nodePos.y - 10 }
         break
+      case 'subgraph':
+        clickPos = { x: nodePos.x + nodeSize.width - 15, y: nodePos.y - 15 }
+        break
       default:
         throw new Error(`Invalid click position ${position}`)
     }
diff --git a/browser_tests/tests/dynamicWidgetsSubgraph.spec.ts b/browser_tests/tests/dynamicWidgetsSubgraph.spec.ts
new file mode 100644
index 000000000..b4f992143
--- /dev/null
+++ b/browser_tests/tests/dynamicWidgetsSubgraph.spec.ts
@@ -0,0 +1,322 @@
+import { expect } from '@playwright/test'
+
+import type { ComfyPage } from '../fixtures/ComfyPage'
+import { comfyPageFixture as test } from '../fixtures/ComfyPage'
+
+test.describe('Dynamic Combo Widgets in Subgraphs', () => {
+  const TEST_NODE_TYPE = 'TestDynamicComboNode'
+
+  test.beforeEach(async ({ comfyPage }) => {
+    await comfyPage.setSetting('Comfy.UseNewMenu', 'Top')
+    await comfyPage.setSetting('Comfy.Workflow.WorkflowTabsPosition', 'Topbar')
+    await comfyPage.setSetting('Comfy.ConfirmClear', false)
+  })
+
+  function subgraphWidgetName(widgetName: string): string {
+    return `1: ${widgetName}`
+  }
+
+  function widget(name: string, visible: boolean, value: unknown) {
+    return {
+      name: subgraphWidgetName(name),
+      visible,
+      value
+    }
+  }
+
+  async function clearGraph(comfyPage: ComfyPage) {
+    await comfyPage.executeCommand('Comfy.ClearWorkflow')
+    await comfyPage.nextFrame()
+  }
+
+  async function getSubgraphNode(comfyPage: ComfyPage) {
+    const nodes = await comfyPage.getNodeRefsByTitle('New Subgraph')
+    return nodes[0]
+  }
+
+  async function createTestNodeAsSubgraph(
+    comfyPage: ComfyPage,
+    mode: 'none' | 'one' | 'two' | 'three' = 'none'
+  ) {
+    const testNode = await comfyPage.createNode(TEST_NODE_TYPE)
+
+    if (mode !== 'none') {
+      const widget = await testNode.getWidgetByName('dynamic_combo')
+      if (widget) await widget.setValue(mode)
+    }
+
+    await testNode.click('title')
+    await comfyPage.nextFrame()
+
+    return await testNode.convertToSubgraph()
+  }
+
+  test('Promoted dynamic combo promotes all children with it', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'two')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0)
+    ])
+  })
+
+  test('Demoted dynamic combo unpromotes all children with it', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'two')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0)
+    ])
+
+    await comfyPage.menu.propertiesPanel.demoteWidget('dynamic_combo')
+
+    const widgets = await subgraphNode.getWidgets()
+    const visibleWidgets = widgets.filter((w) => w.visible)
+    expect(visibleWidgets).toEqual([])
+  })
+
+  test('Promoted combo widgets hide and show based on combo value', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'none')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none')
+    ])
+
+    const comboWidget = await subgraphNode.getWidgetByName(
+      subgraphWidgetName('dynamic_combo')
+    )
+
+    await comboWidget!.setValue('one')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'one'),
+      widget('dynamic_combo.w1', true, 0)
+    ])
+
+    await comboWidget!.setValue('two')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0)
+    ])
+
+    await comboWidget!.setValue('three')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'three'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0),
+      widget('dynamic_combo.w3', true, 0)
+    ])
+
+    await comboWidget!.setValue('two')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0),
+      widget('dynamic_combo.w3', false, undefined)
+    ])
+
+    await comboWidget!.setValue('one')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'one'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', false, undefined),
+      widget('dynamic_combo.w3', false, undefined)
+    ])
+
+    await comboWidget!.setValue('none')
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none'),
+      widget('dynamic_combo.w1', false, undefined),
+      widget('dynamic_combo.w2', false, undefined),
+      widget('dynamic_combo.w3', false, undefined)
+    ])
+  })
+
+  test('Promoted combo maintains state after workflow reload', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'two')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    const w1 = await subgraphNode.getWidgetByName(
+      subgraphWidgetName('dynamic_combo.w1')
+    )
+    const w2 = await subgraphNode.getWidgetByName(
+      subgraphWidgetName('dynamic_combo.w2')
+    )
+    await w1!.setValue(123)
+    await w2!.setValue(456)
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 123),
+      widget('dynamic_combo.w2', true, 456)
+    ])
+
+    // Click on node to ensure changes are committed before switching
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+
+    await comfyPage.executeCommand('Comfy.NewBlankWorkflow')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.topbar.switchToTab(0)
+    await comfyPage.nextFrame()
+
+    const reloadedSubgraph = await getSubgraphNode(comfyPage)
+    expect(await reloadedSubgraph.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 123),
+      widget('dynamic_combo.w2', true, 456)
+    ])
+  })
+
+  test('Hidden children remain hidden after workflow reload when combo is none', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'two')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    const comboWidget = await subgraphNode.getWidgetByName(
+      subgraphWidgetName('dynamic_combo')
+    )
+    await comboWidget!.setValue('none')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none'),
+      widget('dynamic_combo.w1', false, undefined),
+      widget('dynamic_combo.w2', false, undefined)
+    ])
+
+    // Click on node to ensure changes are committed before switching
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+
+    await comfyPage.executeCommand('Comfy.NewBlankWorkflow')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.topbar.switchToTab(0)
+    await comfyPage.nextFrame()
+
+    const reloadedSubgraph = await getSubgraphNode(comfyPage)
+    expect(await reloadedSubgraph.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none'),
+      widget('dynamic_combo.w1', false, undefined),
+      widget('dynamic_combo.w2', false, undefined)
+    ])
+  })
+
+  test('Children appear when combo changes after workflow reload', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const subgraphNode = await createTestNodeAsSubgraph(comfyPage, 'none')
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none')
+    ])
+
+    await comfyPage.executeCommand('Comfy.NewBlankWorkflow')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.topbar.switchToTab(0)
+    await comfyPage.nextFrame()
+
+    const reloadedSubgraph = await getSubgraphNode(comfyPage)
+    const comboWidget = await reloadedSubgraph.getWidgetByName(
+      subgraphWidgetName('dynamic_combo')
+    )
+    await comboWidget!.setValue('two')
+    await comfyPage.page.waitForTimeout(500)
+
+    expect(await reloadedSubgraph.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0)
+    ])
+  })
+
+  test('Dynamic combo children created inside subgraph are auto-promoted', async ({
+    comfyPage
+  }) => {
+    await clearGraph(comfyPage)
+
+    const testNode = await comfyPage.createNode(TEST_NODE_TYPE)
+    await testNode.click('title')
+    await comfyPage.nextFrame()
+
+    const subgraphNode = await testNode.convertToSubgraph()
+    await comfyPage.page.waitForTimeout(500)
+
+    await subgraphNode.click('title')
+    await comfyPage.nextFrame()
+    await comfyPage.menu.propertiesPanel.promoteWidget('dynamic_combo')
+
+    expect(await subgraphNode.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'none')
+    ])
+
+    await subgraphNode.click('subgraph')
+    await expect
+      .poll(() => comfyPage.isInSubgraph(), { timeout: 5000 })
+      .toBe(true)
+
+    const innerNodes = await comfyPage.getNodeRefsByType(TEST_NODE_TYPE, true)
+    const innerNode = innerNodes[0]
+    const innerComboWidget = await innerNode.getWidgetByName(
+      'dynamic_combo',
+      true
+    )
+    await innerComboWidget!.setValue('two', true)
+
+    await comfyPage.page.keyboard.press('Escape')
+    await comfyPage.nextFrame()
+    expect(await comfyPage.isInSubgraph()).toBe(false)
+
+    const outerSubgraph = await getSubgraphNode(comfyPage)
+    expect(await outerSubgraph.getWidgets()).toEqual([
+      widget('dynamic_combo', true, 'two'),
+      widget('dynamic_combo.w1', true, 0),
+      widget('dynamic_combo.w2', true, 0)
+    ])
+  })
+})
diff --git a/src/core/graph/subgraph/proxyWidgetUtils.ts b/src/core/graph/subgraph/proxyWidgetUtils.ts
index 9f50a8840..2a901aaf3 100644
--- a/src/core/graph/subgraph/proxyWidgetUtils.ts
+++ b/src/core/graph/subgraph/proxyWidgetUtils.ts
@@ -184,13 +184,24 @@ export function autoPromoteDynamicChildren(
   node: LGraphNode,
   parentWidget: IBaseWidget
 ) {
-  if (!parentWidget.promoted) return
-
   const parents = getSubgraphParents(node)
   if (!parents.length) return
 
+  // Check if the parent widget is actually promoted on any parent SubgraphNode.
+  // This is more reliable than checking parentWidget.promoted, which may not
+  // be set after workflow reload (the flag is only synced when navigating into
+  // the subgraph).
+  const nodeId = String(node.id)
+  const promotedOnParents = parents.filter((parent) =>
+    getProxyWidgets(parent).some(
+      ([id, name]) => id === nodeId && name === parentWidget.name
+    )
+  )
+
+  if (!promotedOnParents.length) return
+
   const childWidgets = getChildWidgets(node, parentWidget.name)
-  promoteWidgetsToProxy(node, childWidgets, parents)
+  promoteWidgetsToProxy(node, childWidgets, promotedOnParents)
 }
 
 /**