diff --git a/apps/ai-game-creator-shell/src/components/AssetImporter/ImageImporterPreview.tsx b/apps/ai-game-creator-shell/src/components/AssetImporter/ImageImporterPreview.tsx
index ad2b2620f..7378df15f 100644
--- a/apps/ai-game-creator-shell/src/components/AssetImporter/ImageImporterPreview.tsx
+++ b/apps/ai-game-creator-shell/src/components/AssetImporter/ImageImporterPreview.tsx
@@ -3,6 +3,7 @@ import { useEffect, useRef, useState } from 'react';
 
 import { SpriteImagePreview } from '../../features/ui-editor/components/SpriteImagePreview';
 import { readEditorAssetPreview } from '../../services/editorAssetHost';
+import { visibleClientErrorMessage } from '../../services/errorReporting';
 import {
   cancelLocalProjectResourcePreviewScope,
   createProjectResourcePreviewRequestId,
@@ -17,6 +18,7 @@ export function ImageImporterPreview({
   selected,
 }: AssetImporterPreviewProps) {
   const [previewUrl, setPreviewUrl] = useState<string | null>(null);
+  const [previewError, setPreviewError] = useState('');
   const scopeIdRef = useRef(createProjectResourcePreviewScopeId());
 
   useEffect(() => {
@@ -29,6 +31,7 @@ export function ImageImporterPreview({
   useEffect(() => {
     if (!selected || selected.isDirectory) {
       setPreviewUrl(null);
+      setPreviewError('');
       return;
     }
     // A disk-only candidate deliberately has no formal asset identity. Keep
@@ -36,16 +39,24 @@ export function ImageImporterPreview({
     // first when the user confirms the import.
     if (selected.source === 'local' && !selected.asset) {
       setPreviewUrl(null);
+      setPreviewError('');
       return;
     }
     if (selected.previewUrl) {
       setPreviewUrl(selected.previewUrl);
+      setPreviewError('');
       return;
     }
     if (selected.source === 'remote' && selected.remoteAssetId) {
       void readEditorAssetPreview(selected.remoteAssetId)
-        .then((preview) => setPreviewUrl(preview.previewUrl))
-        .catch(() => setPreviewUrl(null));
+        .then((preview) => {
+          setPreviewUrl(preview.previewUrl);
+          setPreviewError('');
+        })
+        .catch((error) => {
+          setPreviewUrl(null);
+          setPreviewError(visibleClientErrorMessage(error));
+        });
       return;
     }
     if (
@@ -53,6 +64,7 @@ export function ImageImporterPreview({
       /^https?:\/\//iu.test(selected.asset?.localPath ?? '')
     ) {
       setPreviewUrl(selected.asset?.localPath ?? null);
+      setPreviewError('');
       return;
     }
     void invoke<ImagePreviewResponse>('read_local_project_image_preview', {
@@ -62,7 +74,10 @@ export function ImageImporterPreview({
       requestId: createProjectResourcePreviewRequestId(),
     })
       .then((value) => setPreviewUrl(value.dataUrl))
-      .catch(() => setPreviewUrl(null));
+      .catch((error) => {
+        setPreviewUrl(null);
+        setPreviewError(visibleClientErrorMessage(error));
+      });
   }, [projectPath, selected]);
 
   return previewUrl ? (
@@ -72,10 +87,14 @@ export function ImageImporterPreview({
       className="max-h-72 max-w-full object-contain"
     />
   ) : (
-    <span className="text-xs text-(--platform-text-soft)">
+    <span
+      className="text-xs text-(--platform-text-soft)"
+      title={previewError || undefined}
+      role={previewError ? 'alert' : undefined}
+    >
       {selected?.source === 'local' && !selected.asset
         ? '待导入，导入后可预览'
-        : (selected?.name ?? '选择一个文件')}
+        : previewError || selected?.name || '选择一个文件'}
     </span>
   );
 }
diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferencePicker.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferencePicker.tsx
index 733c04736..7c2f98736 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferencePicker.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferencePicker.tsx
@@ -27,6 +27,7 @@ import {
   isGameCreationAppUiDesignDocAsset,
 } from '../../../../../packages/shared/src/contracts/gameCreationApp';
 import { resolveTauriInvoke } from '../../app/tauri';
+import { visibleClientErrorMessage } from '../../services/errorReporting';
 import {
   cancelLocalProjectResourcePreviewScope,
   createProjectResourcePreviewRequestId,
@@ -519,11 +520,13 @@ function ResourcePickerThumbnail({
   const previewScopeIdRef = useRef(createProjectResourcePreviewScopeId());
   const [previewUrl, setPreviewUrl] = useState<string | null>(null);
   const [failed, setFailed] = useState(false);
+  const [previewError, setPreviewError] = useState('');
   const mediaType = asset?.mediaType.toLowerCase() ?? '';
 
   useEffect(() => {
     setPreviewUrl(null);
     setFailed(false);
+    setPreviewError('');
     if (!asset || !projectPath || !mediaType.startsWith('image/')) {
       return;
     }
@@ -539,8 +542,11 @@ function ResourcePickerThumbnail({
       .then((result) => {
         if (!cancelled) setPreviewUrl(result.dataUrl);
       })
-      .catch(() => {
-        if (!cancelled) setFailed(true);
+      .catch((error) => {
+        if (!cancelled) {
+          setFailed(true);
+          setPreviewError(visibleClientErrorMessage(error));
+        }
       });
     return () => {
       cancelled = true;
@@ -555,7 +561,14 @@ function ResourcePickerThumbnail({
     return <img src={previewUrl} alt="" />;
   }
   if (failed) {
-    return <FileText size={18} aria-hidden="true" />;
+    return (
+      <span
+        aria-label={`素材预览失败：${previewError}`}
+        title={`素材预览失败：${previewError}`}
+      >
+        <FileText size={18} aria-hidden="true" />
+      </span>
+    );
   }
   if (mediaType.startsWith('video/')) {
     return <Video size={18} aria-hidden="true" />;
diff --git a/apps/ai-game-creator-shell/src/view/project-development/ResourceModelPreview.tsx b/apps/ai-game-creator-shell/src/view/project-development/ResourceModelPreview.tsx
index 189d0f8ba..b146038db 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/ResourceModelPreview.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/ResourceModelPreview.tsx
@@ -1,5 +1,6 @@
 import { useEffect, useRef, useState } from 'react';
 
+import { visibleClientErrorMessage } from '../../services/errorReporting';
 import { renderResourceModelThumbnail } from './resourceModelThumbnail';
 
 type ResourceModelPreviewProps = {
@@ -42,6 +43,7 @@ export function ResourceModelPreview({
   const [status, setStatus] = useState<'loading' | 'ready' | 'failed'>(
     'loading',
   );
+  const [previewError, setPreviewError] = useState('');
   /**
    * 渲染尺寸按**宿主真实几何**（含画布缩放后的视觉尺寸）取，并且跟着宿主的尺寸变化重渲。
    *
@@ -104,6 +106,7 @@ export function ResourceModelPreview({
     let disposed = false;
     setThumbnail(null);
     setStatus('loading');
+    setPreviewError('');
     const request = {
       sourceUrl,
       mediaType,
@@ -119,9 +122,10 @@ export function ResourceModelPreview({
         setThumbnail(dataUrl);
         setStatus('ready');
       })
-      .catch(() => {
+      .catch((error) => {
         if (!disposed) {
           setStatus('failed');
+          setPreviewError(visibleClientErrorMessage(error));
         }
       });
     return () => {
@@ -134,6 +138,10 @@ export function ResourceModelPreview({
       ref={hostRef}
       className="game-resource-card-model-visual"
       data-model-preview-status={status}
+      title={previewError ? `${fallbackLabel}：${previewError}` : fallbackLabel}
+      aria-label={
+        previewError ? `${fallbackLabel}：${previewError}` : fallbackLabel
+      }
       // 渲染尺寸暴露到 DOM：缩略图糊 / 比例不对时，先看它和卡片实际几何是否一致。
       data-model-render-size={
         renderSize ? `${renderSize.width}x${renderSize.height}` : undefined
diff --git a/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md b/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
index 02a6056fd..a0691440a 100644
--- a/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
+++ b/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
@@ -104,3 +104,4 @@ DirectProject 回合失败在确认不是客户端内部不可归类故障时，
 - 新增发布尝试账本损坏回归：损坏记录现在阻止生成新的根幂等键，并返回账本 JSON 解析正文，避免静默重复发布。
 - 首页建项/打开项目读取本地 revision 失败原先吞成 `null` 并继续进入项目；现保留降级进入行为，同时把 IPC/文件读取正文写入首页状态。
 - 发布面板读取封面生成价格失败原先只清空价格并继续显示泛化消耗提示；现保留价格查询的脱敏正文并在确认弹窗中展示。
+- 资源模型卡、素材引用选择器和本地图片导入预览原先失败只降级成图标/文件名；现保留脱敏后的 WebGL、IPC、远程读取原因，并通过卡面 title/aria 或提示文本展示，降级预览行为不变。