diff --git a/browser_tests/tests/templates.spec.ts b/browser_tests/tests/templates.spec.ts
index ae7e3747d..4921165f7 100644
--- a/browser_tests/tests/templates.spec.ts
+++ b/browser_tests/tests/templates.spec.ts
@@ -82,9 +82,7 @@ test.describe('Templates', () => {
     await expect(comfyPage.templates.content).toBeVisible()
 
     await comfyPage.page
-      .locator(
-        'nav > div:nth-child(3) > div > span:has-text("Getting Started")'
-      )
+      .getByRole('button', { name: 'Getting Started' })
       .click()
     await comfyPage.templates.loadTemplate('default')
     await expect(comfyPage.templates.content).toBeHidden()
diff --git a/src/components/custom/widget/WorkflowTemplateSelectorDialog.vue b/src/components/custom/widget/WorkflowTemplateSelectorDialog.vue
index aeb98971b..0276435f1 100644
--- a/src/components/custom/widget/WorkflowTemplateSelectorDialog.vue
+++ b/src/components/custom/widget/WorkflowTemplateSelectorDialog.vue
@@ -3,17 +3,14 @@
     :content-title="$t('templateWorkflows.title', 'Workflow Templates')"
     class="workflow-template-selector-dialog"
   >
+    <template #leftPanelHeaderTitle>
+      <i class="icon-[comfy--template]" />
+      <h2 class="text-neutral text-base">
+        {{ $t('sideToolbar.templates', 'Templates') }}
+      </h2>
+    </template>
     <template #leftPanel>
-      <LeftSidePanel v-model="selectedNavItem" :nav-items="navItems">
-        <template #header-icon>
-          <i class="icon-[comfy--template]" />
-        </template>
-        <template #header-title>
-          <span class="text-neutral text-base">{{
-            $t('sideToolbar.templates', 'Templates')
-          }}</span>
-        </template>
-      </LeftSidePanel>
+      <LeftSidePanel v-model="selectedNavItem" :nav-items="navItems" />
     </template>
 
     <template #header>
diff --git a/src/components/widget/SampleModelSelector.vue b/src/components/widget/SampleModelSelector.vue
index 6e1db7e7c..ab07080e8 100644
--- a/src/components/widget/SampleModelSelector.vue
+++ b/src/components/widget/SampleModelSelector.vue
@@ -117,7 +117,7 @@
     </template>
 
     <template #rightPanel>
-      <RightSidePanel></RightSidePanel>
+      <div class="size-full bg-modal-panel-background pr-6 pb-8 pl-4"></div>
     </template>
   </BaseModalLayout>
 </template>
@@ -136,7 +136,6 @@ import SingleSelect from '@/components/input/SingleSelect.vue'
 import Button from '@/components/ui/button/Button.vue'
 import BaseModalLayout from '@/components/widget/layout/BaseModalLayout.vue'
 import LeftSidePanel from '@/components/widget/panel/LeftSidePanel.vue'
-import RightSidePanel from '@/components/widget/panel/RightSidePanel.vue'
 import type { NavGroupData, NavItemData } from '@/types/navTypes'
 import { OnCloseKey } from '@/types/widgetTypes'
 import { createGridStyle } from '@/utils/gridUtil'
diff --git a/src/components/widget/layout/BaseModalLayout.stories.ts b/src/components/widget/layout/BaseModalLayout.stories.ts
index abcfae912..5fdf8258b 100644
--- a/src/components/widget/layout/BaseModalLayout.stories.ts
+++ b/src/components/widget/layout/BaseModalLayout.stories.ts
@@ -15,7 +15,6 @@ import { OnCloseKey } from '@/types/widgetTypes'
 import { createGridStyle } from '@/utils/gridUtil'
 
 import LeftSidePanel from '../panel/LeftSidePanel.vue'
-import RightSidePanel from '../panel/RightSidePanel.vue'
 import BaseModalLayout from './BaseModalLayout.vue'
 
 interface StoryArgs {
@@ -69,7 +68,6 @@ const createStoryTemplate = (args: StoryArgs) => ({
   components: {
     BaseModalLayout,
     LeftSidePanel,
-    RightSidePanel,
     SearchBox,
     MultiSelect,
     SingleSelect,
@@ -175,16 +173,15 @@ const createStoryTemplate = (args: StoryArgs) => ({
   template: `
     <div>
       <BaseModalLayout v-if="!args.hasRightPanel" :content-title="args.contentTitle || 'Content Title'">
+        <!-- Left Panel Header Title -->
+        <template v-if="args.hasLeftPanel" #leftPanelHeaderTitle>
+          <i class="icon-[lucide--puzzle] size-4 text-neutral" />
+          <span class="text-neutral text-base">Title</span>
+        </template>
+
         <!-- Left Panel -->
         <template v-if="args.hasLeftPanel" #leftPanel>
-          <LeftSidePanel v-model="selectedNavItem" :nav-items="tempNavigation">
-            <template #header-icon>
-              <i class="icon-[lucide--puzzle] size-4 text-neutral" />
-            </template>
-            <template #header-title>
-              <span class="text-neutral text-base">Title</span>
-            </template>
-          </LeftSidePanel>
+          <LeftSidePanel v-model="selectedNavItem" :nav-items="tempNavigation" />
         </template>
 
         <!-- Header -->
@@ -299,16 +296,15 @@ const createStoryTemplate = (args: StoryArgs) => ({
 
       <BaseModalLayout v-else :content-title="args.contentTitle || 'Content Title'">
         <!-- Same content but WITH right panel -->
+        <!-- Left Panel Header Title -->
+        <template v-if="args.hasLeftPanel" #leftPanelHeaderTitle>
+          <i class="icon-[lucide--puzzle] size-4 text-neutral" />
+          <span class="text-neutral text-base">Title</span>
+        </template>
+
         <!-- Left Panel -->
         <template v-if="args.hasLeftPanel" #leftPanel>
-          <LeftSidePanel v-model="selectedNavItem" :nav-items="tempNavigation">
-            <template #header-icon>
-              <i class="icon-[lucide--puzzle] size-4 text-neutral" />
-            </template>
-            <template #header-title>
-              <span class="text-neutral text-base">Title</span>
-            </template>
-          </LeftSidePanel>
+          <LeftSidePanel v-model="selectedNavItem" :nav-items="tempNavigation" />
         </template>
 
         <!-- Header -->
@@ -415,7 +411,7 @@ const createStoryTemplate = (args: StoryArgs) => ({
 
         <!-- Right Panel - Only when hasRightPanel is true -->
         <template #rightPanel>
-          <RightSidePanel />
+          <div class="size-full bg-modal-panel-background pr-6 pb-8 pl-4"></div>
         </template>
       </BaseModalLayout>
     </div>
diff --git a/src/components/widget/layout/BaseModalLayout.vue b/src/components/widget/layout/BaseModalLayout.vue
index 148ea3ccd..79d18bf2c 100644
--- a/src/components/widget/layout/BaseModalLayout.vue
+++ b/src/components/widget/layout/BaseModalLayout.vue
@@ -8,13 +8,26 @@
       :style="gridStyle"
     >
       <nav
-        class="h-full overflow-hidden"
+        class="h-full overflow-hidden bg-modal-panel-background flex flex-col"
         :inert="!showLeftPanel"
         :aria-hidden="!showLeftPanel"
       >
-        <div v-if="hasLeftPanel" class="h-full min-w-40 max-w-56">
-          <slot name="leftPanel" />
-        </div>
+        <header
+          data-component-id="LeftPanelHeader"
+          class="flex w-full h-18 shrink-0 gap-2 pl-6 pr-3 items-center-safe"
+        >
+          <slot name="leftPanelHeaderTitle" />
+          <Button
+            v-if="!notMobile && showLeftPanel"
+            size="lg"
+            class="w-10 p-0 ml-auto"
+            :aria-label="t('g.hideLeftPanel')"
+            @click="toggleLeftPanel"
+          >
+            <i class="icon-[lucide--panel-left-close]" />
+          </Button>
+        </header>
+        <slot name="leftPanel" />
       </nav>
 
       <div class="flex flex-col bg-base-background overflow-hidden">
@@ -24,22 +37,13 @@
         >
           <div class="flex flex-1 shrink-0 gap-2">
             <Button
-              v-if="!notMobile"
-              size="icon"
-              :aria-label="
-                showLeftPanel ? t('g.hideLeftPanel') : t('g.showLeftPanel')
-              "
+              v-if="!notMobile && !showLeftPanel"
+              size="lg"
+              class="w-10 p-0"
+              :aria-label="t('g.showLeftPanel')"
               @click="toggleLeftPanel"
             >
-              <i
-                :class="
-                  cn(
-                    showLeftPanel
-                      ? 'icon-[lucide--panel-left]'
-                      : 'icon-[lucide--panel-left-close]'
-                  )
-                "
-              />
+              <i class="icon-[lucide--panel-left]" />
             </Button>
             <slot name="header" />
           </div>
@@ -69,7 +73,7 @@
           <slot name="contentFilter" />
           <h2
             v-if="!hasLeftPanel"
-            class="text-xxl m-0 px-6 pt-2 pb-6 capitalize"
+            class="text-xxl m-0 select-none px-6 pt-2 pb-6 capitalize"
           >
             {{ contentTitle }}
           </h2>
@@ -94,7 +98,10 @@
             data-component-id="RightPanelHeader"
             class="flex h-18 shrink-0 items-center gap-2 px-6"
           >
-            <h2 v-if="rightPanelTitle" class="flex-1 text-base font-semibold">
+            <h2
+              v-if="rightPanelTitle"
+              class="flex-1 select-none text-base font-semibold"
+            >
               {{ rightPanelTitle }}
             </h2>
             <div v-else class="flex-1">
@@ -134,7 +141,6 @@ import { useI18n } from 'vue-i18n'
 
 import Button from '@/components/ui/button/Button.vue'
 import { OnCloseKey } from '@/types/widgetTypes'
-import { cn } from '@/utils/tailwindUtil'
 
 const { t } = useI18n()
 
diff --git a/src/components/widget/nav/NavItem.vue b/src/components/widget/nav/NavItem.vue
index eb20b9852..f7b8bbcf1 100644
--- a/src/components/widget/nav/NavItem.vue
+++ b/src/components/widget/nav/NavItem.vue
@@ -5,7 +5,7 @@
       disabled: !isOverflowing,
       pt: { text: { class: 'whitespace-nowrap' } }
     }"
-    class="flex cursor-pointer items-center-safe gap-2 rounded-md px-4 py-3 text-sm transition-colors text-base-foreground"
+    class="flex cursor-pointer select-none items-center-safe gap-2 rounded-md px-4 py-3 text-sm transition-colors text-base-foreground"
     :class="
       active
         ? 'bg-interface-menu-component-surface-selected'
diff --git a/src/components/widget/panel/LeftSidePanel.stories.ts b/src/components/widget/panel/LeftSidePanel.stories.ts
index bbfee54c4..98199ad87 100644
--- a/src/components/widget/panel/LeftSidePanel.stories.ts
+++ b/src/components/widget/panel/LeftSidePanel.stories.ts
@@ -7,20 +7,6 @@ const meta: Meta<typeof LeftSidePanel> = {
   title: 'Components/Widget/Panel/LeftSidePanel',
   component: LeftSidePanel,
   argTypes: {
-    'header-icon': {
-      table: {
-        type: { summary: 'slot' },
-        defaultValue: { summary: 'undefined' }
-      },
-      control: false
-    },
-    'header-title': {
-      table: {
-        type: { summary: 'slot' },
-        defaultValue: { summary: 'undefined' }
-      },
-      control: false
-    },
     'onUpdate:modelValue': {
       table: { disable: true }
     }
@@ -59,14 +45,7 @@ export const Default: Story = {
     },
     template: `
       <div style="height: 500px; width: 256px;">
-        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems">
-          <template #header-icon>
-            <i class="icon-[lucide--puzzle] size-4 text-neutral" />
-          </template>
-          <template #header-title>
-            <span class="text-neutral text-base">Navigation</span>
-          </template>
-        </LeftSidePanel>
+        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems" />
       </div>
     `
   })
@@ -126,14 +105,7 @@ export const WithGroups: Story = {
     },
     template: `
       <div style="height: 500px; width: 256px;">
-        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems">
-          <template #header-icon>
-            <i class="icon-[lucide--puzzle] size-4 text-neutral" />
-          </template>
-          <template #header-title>
-            <span class="text-neutral text-base">Model Selector</span>
-          </template>
-        </LeftSidePanel>
+        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems" />
         <div class="mt-4 p-2 text-sm">
           Selected: {{ selectedItem }}
         </div>
@@ -176,14 +148,7 @@ export const DefaultIcons: Story = {
     },
     template: `
       <div style="height: 400px; width: 256px;">
-        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems">
-          <template #header-icon>
-            <i class="icon-[lucide--folder] size-4 text-neutral" />
-          </template>
-          <template #header-title>
-            <span class="text-neutral text-base">Files</span>
-          </template>
-        </LeftSidePanel>
+        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems" />
       </div>
     `
   })
@@ -228,14 +193,7 @@ export const LongLabels: Story = {
     },
     template: `
       <div style="height: 500px; width: 256px;">
-        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems">
-          <template #header-icon>
-            <i class="icon-[lucide--settings] size-4 text-neutral" />
-          </template>
-          <template #header-title>
-            <span class="text-neutral text-base">Settings</span>
-          </template>
-        </LeftSidePanel>
+        <LeftSidePanel v-model="selectedItem" :nav-items="args.navItems" />
       </div>
     `
   })
diff --git a/src/components/widget/panel/LeftSidePanel.vue b/src/components/widget/panel/LeftSidePanel.vue
index 53d195029..3711897f8 100644
--- a/src/components/widget/panel/LeftSidePanel.vue
+++ b/src/components/widget/panel/LeftSidePanel.vue
@@ -1,47 +1,41 @@
 <template>
-  <div class="flex h-full w-full flex-col bg-modal-panel-background">
-    <PanelHeader>
-      <template #icon>
-        <slot name="header-icon"></slot>
-      </template>
-      <slot name="header-title"></slot>
-    </PanelHeader>
-
-    <nav
-      class="flex scrollbar-hide flex-1 flex-col gap-1 overflow-y-auto px-3 py-4"
+  <div
+    class="flex w-full flex-auto overflow-y-auto gap-1 min-h-0 flex-col bg-modal-panel-background scrollbar-hide px-3"
+  >
+    <template
+      v-for="item in navItems"
+      :key="'title' in item ? item.title : item.id"
     >
-      <template v-for="(item, index) in navItems" :key="index">
-        <div v-if="'items' in item" class="flex flex-col gap-2">
-          <NavTitle
-            v-model="collapsedGroups[item.title]"
-            :title="item.title"
-            :collapsible="item.collapsible"
-          />
-          <template v-if="!item.collapsible || !collapsedGroups[item.title]">
-            <NavItem
-              v-for="subItem in item.items"
-              :key="subItem.id"
-              :icon="subItem.icon"
-              :badge="subItem.badge"
-              :active="activeItem === subItem.id"
-              @click="activeItem = subItem.id"
-            >
-              {{ subItem.label }}
-            </NavItem>
-          </template>
-        </div>
-        <div v-else class="flex flex-col gap-2">
+      <div v-if="'items' in item" class="flex flex-col gap-2">
+        <NavTitle
+          v-model="collapsedGroups[item.title]"
+          :title="item.title"
+          :collapsible="item.collapsible"
+        />
+        <template v-if="!item.collapsible || !collapsedGroups[item.title]">
           <NavItem
-            :icon="item.icon"
-            :badge="item.badge"
-            :active="activeItem === item.id"
-            @click="activeItem = item.id"
+            v-for="subItem in item.items"
+            :key="subItem.id"
+            :icon="subItem.icon"
+            :badge="subItem.badge"
+            :active="activeItem === subItem.id"
+            @click="activeItem = subItem.id"
           >
-            {{ item.label }}
+            {{ subItem.label }}
           </NavItem>
-        </div>
-      </template>
-    </nav>
+        </template>
+      </div>
+      <div v-else class="flex flex-col gap-2">
+        <NavItem
+          :icon="item.icon"
+          :badge="item.badge"
+          :active="activeItem === item.id"
+          @click="activeItem = item.id"
+        >
+          {{ item.label }}
+        </NavItem>
+      </div>
+    </template>
   </div>
 </template>
 
@@ -52,8 +46,6 @@ import NavItem from '@/components/widget/nav/NavItem.vue'
 import NavTitle from '@/components/widget/nav/NavTitle.vue'
 import type { NavGroupData, NavItemData } from '@/types/navTypes'
 
-import PanelHeader from './PanelHeader.vue'
-
 const { navItems = [], modelValue } = defineProps<{
   navItems?: (NavItemData | NavGroupData)[]
   modelValue?: string | null
diff --git a/src/components/widget/panel/PanelHeader.vue b/src/components/widget/panel/PanelHeader.vue
deleted file mode 100644
index cdcc4eb20..000000000
--- a/src/components/widget/panel/PanelHeader.vue
+++ /dev/null
@@ -1,12 +0,0 @@
-<template>
-  <header class="flex h-16 items-center justify-between px-6">
-    <div class="flex items-center gap-2 pl-1">
-      <slot name="icon">
-        <i class="text-neutral icon-[lucide--puzzle] text-base" />
-      </slot>
-      <h2 class="text-neutral text-base font-bold">
-        <slot></slot>
-      </h2>
-    </div>
-  </header>
-</template>
diff --git a/src/components/widget/panel/RightSidePanel.vue b/src/components/widget/panel/RightSidePanel.vue
deleted file mode 100644
index 85e5aee69..000000000
--- a/src/components/widget/panel/RightSidePanel.vue
+++ /dev/null
@@ -1,5 +0,0 @@
-<template>
-  <div class="size-full bg-modal-panel-background pr-6 pb-8 pl-4">
-    <slot></slot>
-  </div>
-</template>
diff --git a/src/platform/assets/components/AssetBadgeGroup.vue b/src/platform/assets/components/AssetBadgeGroup.vue
index 5c85713e4..46c39e917 100644
--- a/src/platform/assets/components/AssetBadgeGroup.vue
+++ b/src/platform/assets/components/AssetBadgeGroup.vue
@@ -1,5 +1,7 @@
 <template>
-  <div class="absolute left-2 bottom-2 flex flex-wrap justify-start gap-1">
+  <div
+    class="absolute left-2 bottom-2 flex flex-wrap justify-start gap-1 select-none"
+  >
     <span
       v-for="badge in badges"
       :key="badge.label"
diff --git a/src/platform/assets/components/AssetBrowserModal.vue b/src/platform/assets/components/AssetBrowserModal.vue
index 2b8529333..2fd343d42 100644
--- a/src/platform/assets/components/AssetBrowserModal.vue
+++ b/src/platform/assets/components/AssetBrowserModal.vue
@@ -7,19 +7,18 @@
     :right-panel-title="$t('assetBrowser.modelInfo.title')"
     @close="handleClose"
   >
+    <template v-if="shouldShowLeftPanel" #leftPanelHeaderTitle>
+      <i class="icon-[comfy--ai-model] size-4" />
+      <h2 class="flex-auto select-none text-base font-semibold text-nowrap">
+        {{ displayTitle }}
+      </h2>
+    </template>
     <template v-if="shouldShowLeftPanel" #leftPanel>
       <LeftSidePanel
         v-model="selectedNavItem"
         data-component-id="AssetBrowserModal-LeftSidePanel"
         :nav-items
-      >
-        <template #header-icon>
-          <div class="icon-[comfy--ai-model] size-4" />
-        </template>
-        <template #header-title>
-          <span class="capitalize">{{ displayTitle }}</span>
-        </template>
-      </LeftSidePanel>
+      />
     </template>
 
     <template #header>
diff --git a/src/platform/assets/components/AssetCard.vue b/src/platform/assets/components/AssetCard.vue
index ccaf546c1..2b1b6fbe4 100644
--- a/src/platform/assets/components/AssetCard.vue
+++ b/src/platform/assets/components/AssetCard.vue
@@ -7,7 +7,7 @@
     :tabindex="interactive ? 0 : -1"
     :class="
       cn(
-        'rounded-2xl overflow-hidden transition-all duration-200 bg-modal-card-background p-2 gap-2 flex flex-col h-full',
+        'select-none rounded-2xl overflow-hidden transition-all duration-200 bg-modal-card-background p-2 gap-2 flex flex-col h-full',
         interactive &&
           'group appearance-none bg-transparent m-0 outline-none text-left hover:bg-secondary-background focus:bg-secondary-background border-none focus:outline-solid outline-base-foreground outline-4',
         focused && 'bg-secondary-background outline-solid'
diff --git a/src/platform/assets/components/AssetFilterBar.vue b/src/platform/assets/components/AssetFilterBar.vue
index 040b1bc87..61ad40ec8 100644
--- a/src/platform/assets/components/AssetFilterBar.vue
+++ b/src/platform/assets/components/AssetFilterBar.vue
@@ -79,8 +79,9 @@ const fileFormats = ref<SelectOption[]>([])
 const baseModels = ref<SelectOption[]>([])
 const sortBy = ref<SortOption>('recent')
 
-const { availableFileFormats, availableBaseModels } =
-  useAssetFilterOptions(assets)
+const { availableFileFormats, availableBaseModels } = useAssetFilterOptions(
+  () => assets
+)
 
 const emit = defineEmits<{
   filterChange: [filters: FilterState]
diff --git a/src/platform/assets/components/AssetGrid.vue b/src/platform/assets/components/AssetGrid.vue
index 05e0b0a10..03c624a79 100644
--- a/src/platform/assets/components/AssetGrid.vue
+++ b/src/platform/assets/components/AssetGrid.vue
@@ -15,7 +15,7 @@
     </div>
     <div
       v-else-if="assets.length === 0"
-      class="flex h-full flex-col items-center justify-center py-16 text-muted-foreground"
+      class="flex h-full select-none flex-col items-center justify-center py-16 text-muted-foreground"
     >
       <i class="mb-4 icon-[lucide--search] size-10" />
       <h3 class="mb-2 text-lg font-medium">
diff --git a/src/platform/assets/components/modelInfo/ModelInfoField.vue b/src/platform/assets/components/modelInfo/ModelInfoField.vue
index 13a3206e7..448c9a0b6 100644
--- a/src/platform/assets/components/modelInfo/ModelInfoField.vue
+++ b/src/platform/assets/components/modelInfo/ModelInfoField.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="flex flex-col gap-2 px-4 py-2 text-sm text-base-foreground">
     <div class="flex items-center justify-between relative">
-      <span>{{ label }}</span>
+      <span class="select-none">{{ label }}</span>
       <slot name="label-action" />
     </div>
     <slot />
diff --git a/src/platform/assets/components/modelInfo/ModelInfoPanel.vue b/src/platform/assets/components/modelInfo/ModelInfoPanel.vue
index 834f33afa..589aab257 100644
--- a/src/platform/assets/components/modelInfo/ModelInfoPanel.vue
+++ b/src/platform/assets/components/modelInfo/ModelInfoPanel.vue
@@ -5,7 +5,7 @@
   >
     <PropertiesAccordionItem :class="accordionClass">
       <template #label>
-        <span class="text-xs uppercase font-inter">
+        <span class="text-xs uppercase font-inter select-none">
           {{ t('assetBrowser.modelInfo.basicInfo') }}
         </span>
       </template>
@@ -58,7 +58,7 @@
 
     <PropertiesAccordionItem :class="accordionClass">
       <template #label>
-        <span class="text-xs uppercase font-inter">
+        <span class="text-xs uppercase font-inter select-none">
           {{ t('assetBrowser.modelInfo.modelTagging') }}
         </span>
       </template>
@@ -134,7 +134,7 @@
 
     <PropertiesAccordionItem :class="accordionClass">
       <template #label>
-        <span class="text-xs uppercase font-inter">
+        <span class="text-xs uppercase font-inter select-none">
           {{ t('assetBrowser.modelInfo.modelDescription') }}
         </span>
       </template>
diff --git a/src/stores/assetsStore.ts b/src/stores/assetsStore.ts
index 0293f9b32..619c2ac26 100644
--- a/src/stores/assetsStore.ts
+++ b/src/stores/assetsStore.ts
@@ -279,12 +279,15 @@ export const useAssetsStore = defineStore('assets', () => {
 
       const pendingRequestByKey = new Map<string, ModelPaginationState>()
 
-      function createState(): ModelPaginationState {
+      function createState(
+        existingAssets?: Map<string, AssetItem>
+      ): ModelPaginationState {
+        const assets = new Map(existingAssets)
         return reactive({
-          assets: new Map(),
+          assets,
           offset: 0,
           hasMore: true,
-          isLoading: false
+          isLoading: true
         })
       }
 
@@ -336,8 +339,10 @@ export const useAssetsStore = defineStore('assets', () => {
         key: string,
         fetcher: (options: PaginationOptions) => Promise<AssetItem[]>
       ): Promise<void> {
-        const state = createState()
-        state.isLoading = true
+        const existingState = modelStateByKey.value.get(key)
+        const state = createState(existingState?.assets)
+
+        const seenIds = new Set<string>()
 
         const hasExistingData = modelStateByKey.value.has(key)
         if (hasExistingData) {
@@ -363,19 +368,15 @@ export const useAssetsStore = defineStore('assets', () => {
                   pendingRequestByKey.delete(key)
                   modelStateByKey.value.set(key, state)
                 }
-                state.assets = new Map(newAssets.map((a) => [a.id, a]))
-              } else {
-                const assetsToAdd = newAssets.filter(
-                  (a) => !state.assets.has(a.id)
-                )
-                if (assetsToAdd.length > 0) {
-                  assetsArrayCache.delete(key)
-                  for (const asset of assetsToAdd) {
-                    state.assets.set(asset.id, asset)
-                  }
-                }
               }
 
+              // Merge new assets into existing map and track seen IDs
+              for (const asset of newAssets) {
+                seenIds.add(asset.id)
+                state.assets.set(asset.id, asset)
+              }
+              state.assets = new Map(state.assets)
+
               state.offset += newAssets.length
               state.hasMore = newAssets.length === MODEL_BATCH_SIZE
 
@@ -388,17 +389,24 @@ export const useAssetsStore = defineStore('assets', () => {
               }
             } catch (err) {
               if (isStale(key, state)) return
+              console.error(`Error loading batch for ${key}:`, err)
+
               state.error = err instanceof Error ? err : new Error(String(err))
               state.hasMore = false
-              console.error(`Error loading batch for ${key}:`, err)
-              if (state.offset === 0) {
-                state.isLoading = false
-                pendingRequestByKey.delete(key)
-                // TODO: Add toast indicator for first-batch load failures
-              }
+              state.isLoading = false
+              pendingRequestByKey.delete(key)
+
               return
             }
           }
+
+          const staleIds = [...state.assets.keys()].filter(
+            (id) => !seenIds.has(id)
+          )
+          for (const id of staleIds) {
+            state.assets.delete(id)
+          }
+          assetsArrayCache.delete(key)
         }
 
         await loadBatches()
diff --git a/src/workbench/extensions/manager/components/manager/ManagerDialog.vue b/src/workbench/extensions/manager/components/manager/ManagerDialog.vue
index ad7657645..887243315 100644
--- a/src/workbench/extensions/manager/components/manager/ManagerDialog.vue
+++ b/src/workbench/extensions/manager/components/manager/ManagerDialog.vue
@@ -4,15 +4,12 @@
     :content-title="$t('manager.discoverCommunityContent')"
     class="manager-dialog"
   >
+    <template #leftPanelHeaderTitle>
+      <i class="icon-[lucide--puzzle]" />
+      <h2 class="text-neutral text-base">{{ $t('manager.title') }}</h2>
+    </template>
     <template #leftPanel>
-      <LeftSidePanel v-model="selectedNavId" :nav-items="navItems">
-        <template #header-icon>
-          <i class="icon-[lucide--puzzle]" />
-        </template>
-        <template #header-title>
-          <span class="text-neutral text-base">{{ $t('manager.title') }}</span>
-        </template>
-      </LeftSidePanel>
+      <LeftSidePanel v-model="selectedNavId" :nav-items="navItems" />
     </template>
 
     <template #header>