diff --git a/web/src/components/PromptInput.tsx b/web/src/components/PromptInput.tsx
index b949cd7..5b66454 100644
--- a/web/src/components/PromptInput.tsx
+++ b/web/src/components/PromptInput.tsx
@@ -254,6 +254,27 @@ export function PromptInput() {
     if (!el) return;
     setPrompt(el.textContent || '');
     setEditorHtml(el.innerHTML);
+    // Sync assetMentions from DOM — prevents stale refs after deleting @mention spans
+    const mentions: Record<string, unknown>[] = [];
+    el.querySelectorAll('[data-ref-type="asset"]').forEach((span) => {
+      const s = span as HTMLElement;
+      if (s.dataset.assetId) {
+        mentions.push({
+          assetId: s.dataset.assetId,
+          label: s.dataset.assetName || s.textContent?.replace('@', '') || '',
+          thumbUrl: s.dataset.thumbUrl || '',
+          assetType: s.dataset.assetType || 'Image',
+          duration: parseFloat(s.dataset.duration || '0'),
+        });
+      } else if (s.dataset.assetGroupId) {
+        mentions.push({
+          groupId: s.dataset.assetGroupId,
+          label: s.dataset.groupName || s.textContent?.replace('@', '') || '',
+          thumbUrl: s.dataset.thumbUrl || '',
+        });
+      }
+    });
+    useInputBarStore.setState({ assetMentions: mentions });
   }, [setPrompt, setEditorHtml]);
 
   // Remove orphaned mention spans when a reference is deleted
diff --git a/web/src/pages/AdminAssetsPage.tsx b/web/src/pages/AdminAssetsPage.tsx
index 5574be3..0e2a45d 100644
--- a/web/src/pages/AdminAssetsPage.tsx
+++ b/web/src/pages/AdminAssetsPage.tsx
@@ -31,14 +31,23 @@ function VideoThumbnail({ video, onClick }: { video: AssetVideo; onClick: () =>
   );
 }
 
+function isAssetUrl(url: string): boolean {
+  return url.startsWith('asset://') || url.startsWith('Asset://');
+}
+
 function assetVideoToTask(v: AssetVideo): GenerationTask {
-  const references = (v.reference_urls || []).map((ref, i) => ({
-    id: `ref_${v.task_id}_${i}`,
-    type: (ref.type || 'image') as 'image' | 'video',
-    previewUrl: ref.url,
-    label: ref.label || `素材${i + 1}`,
-    role: ref.role,
-  }));
+  const references = (v.reference_urls || []).map((ref, i) => {
+    const url = ref.url || '';
+    const assetRef = isAssetUrl(url);
+    return {
+      id: `ref_${v.task_id}_${i}`,
+      type: (ref.type || 'image') as 'image' | 'video' | 'audio',
+      previewUrl: assetRef ? (ref.thumb_url || '') : url,
+      label: ref.label || `素材${i + 1}`,
+      role: ref.role,
+      isAssetRef: assetRef || undefined,
+    };
+  });
   return {
     id: String(v.id),
     taskId: v.task_id,
diff --git a/web/src/pages/TeamAssetsPage.tsx b/web/src/pages/TeamAssetsPage.tsx
index 5560c71..9c37006 100644
--- a/web/src/pages/TeamAssetsPage.tsx
+++ b/web/src/pages/TeamAssetsPage.tsx
@@ -31,14 +31,23 @@ function VideoThumbnail({ video, onClick }: { video: AssetVideo; onClick: () =>
   );
 }
 
+function isAssetUrl(url: string): boolean {
+  return url.startsWith('asset://') || url.startsWith('Asset://');
+}
+
 function assetVideoToTask(v: AssetVideo): GenerationTask {
-  const references = (v.reference_urls || []).map((ref, i) => ({
-    id: `ref_${v.task_id}_${i}`,
-    type: (ref.type || 'image') as 'image' | 'video',
-    previewUrl: ref.url,
-    label: ref.label || `素材${i + 1}`,
-    role: ref.role,
-  }));
+  const references = (v.reference_urls || []).map((ref, i) => {
+    const url = ref.url || '';
+    const assetRef = isAssetUrl(url);
+    return {
+      id: `ref_${v.task_id}_${i}`,
+      type: (ref.type || 'image') as 'image' | 'video' | 'audio',
+      previewUrl: assetRef ? (ref.thumb_url || '') : url,
+      label: ref.label || `素材${i + 1}`,
+      role: ref.role,
+      isAssetRef: assetRef || undefined,
+    };
+  });
   return {
     id: String(v.id),
     taskId: v.task_id,
diff --git a/web/src/store/generation.ts b/web/src/store/generation.ts
index fb75e0f..4c6d4b4 100644
--- a/web/src/store/generation.ts
+++ b/web/src/store/generation.ts
@@ -618,14 +618,16 @@ export const useGenerationStore = create<GenerationState>((set, get) => ({
     }
 
     if (task.mode === 'universal') {
-      // task.references only contains file refs (assets filtered in backendToFrontend)
-      const references: UploadedFile[] = task.references.map((r) => ({
-        id: r.id,
-        type: r.type,
-        previewUrl: r.previewUrl,
-        label: r.label,
-        tosUrl: r.previewUrl,
-      }));
+      // Only include direct file refs — asset library refs are tracked via assetMentions
+      const references: UploadedFile[] = task.references
+        .filter((r) => !r.isAssetRef)
+        .map((r) => ({
+          id: r.id,
+          type: r.type,
+          previewUrl: r.previewUrl,
+          label: r.label,
+          tosUrl: r.previewUrl,
+        }));
 
       // Always use plain text prompt for reEdit — let PromptInput's rebuildMentionSpans
       // reconstruct tags from references + assetMentions (avoids dead blob: URLs)
@@ -669,14 +671,16 @@ export const useGenerationStore = create<GenerationState>((set, get) => ({
     }
 
     // For regeneration, we need to re-submit with the same TOS URLs
-    // Set up the input bar state, then call addTask
-    const references: UploadedFile[] = task.references.map((r) => ({
-      id: r.id,
-      type: r.type,
-      previewUrl: r.previewUrl,
-      label: r.label,
-      tosUrl: r.previewUrl,
-    }));
+    // Only include direct file refs — asset library refs go via assetMentions fallback
+    const references: UploadedFile[] = task.references
+      .filter((r) => !r.isAssetRef)
+      .map((r) => ({
+        id: r.id,
+        type: r.type,
+        previewUrl: r.previewUrl,
+        label: r.label,
+        tosUrl: r.previewUrl,
+      }));
 
     useInputBarStore.setState({
       prompt: task.prompt,
diff --git a/web/src/types/index.ts b/web/src/types/index.ts
index ecbe496..9b6e6d0 100644
--- a/web/src/types/index.ts
+++ b/web/src/types/index.ts
@@ -76,7 +76,7 @@ export interface BackendTask {
   result_url: string;
   thumbnail_url: string;
   error_message: string;
-  reference_urls: { url: string; type: string; role: string; label: string }[];
+  reference_urls: { url: string; type: string; role: string; label: string; thumb_url?: string }[];
   is_favorited: boolean;
   seed: number;
   created_at: string;
@@ -407,7 +407,7 @@ export interface AssetVideo {
   seconds_consumed: number;
   cost_amount?: number;
   aspect_ratio: string;
-  reference_urls?: { url: string; type: string; role: string; label: string }[];
+  reference_urls?: { url: string; type: string; role: string; label: string; thumb_url?: string }[];
   created_at: string;
 }