diff --git a/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx b/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
index 7484395dc..cc4ba95b8 100644
--- a/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
+++ b/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
@@ -3813,8 +3813,8 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
       setIsAgentProjectMenuOpen(false);
       setIsAgentProjectLoading(true);
       setLoadedAgentProjectId(null);
+      const localDraft = readAgentProjectDraftSnapshot(agentProjectId);
       try {
-        const localDraft = readAgentProjectDraftSnapshot(agentProjectId);
         const result = await agentProjectService.getProject(agentProjectId);
         if (!result.success || !result.data) {
           if (isUnauthorizedApiError(result.error)) {
@@ -3860,6 +3860,14 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
         });
       } catch (error) {
         if (!cancelled) {
+          hydrateAgentProjectSnapshot({
+            projectId: agentProjectId,
+            title: localDraft?.title,
+            thumbnail: localDraft?.thumbnail,
+            projectState:
+              localDraft?.projectState ||
+              createEmptyAgentGenerationProjectPersistedState(),
+          });
           toast.error(
             error instanceof Error ? error.message : "加载生图项目失败"
           );
@@ -3888,6 +3896,28 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
     }
   }, [isAgentProjectSheetOpen]);
 
+  useEffect(() => {
+    if (!isAgentMode) return;
+    if (isLoginDialogOpen || isAgentProjectSheetOpen || isAgentProjectMenuOpen) {
+      return;
+    }
+
+    const restoreBodyPointerEvents = () => {
+      if (document.body.style.pointerEvents === "none") {
+        document.body.style.pointerEvents = "";
+      }
+    };
+
+    restoreBodyPointerEvents();
+    const timeoutId = window.setTimeout(restoreBodyPointerEvents, 120);
+    return () => window.clearTimeout(timeoutId);
+  }, [
+    isAgentMode,
+    isAgentProjectMenuOpen,
+    isAgentProjectSheetOpen,
+    isLoginDialogOpen,
+  ]);
+
   useEffect(() => {
     if (
       !isAgentMode ||
@@ -9170,6 +9200,26 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
       </div>
     ) : null;
 
+  const agentProjectOpeningScreen =
+    isAgentMode && hasActiveAgentProject && !hasLoadedCurrentAgentProject ? (
+      <div className="min-h-screen bg-[#050607] text-white">
+        <AgentCanvasTopNavDark
+          activeKey="agent"
+          batchProcessingEnabled={isBatchProcessingEnabled}
+          rightSlot={agentProjectNavSlot}
+          siteLogo={siteSettingsData?.siteLogo}
+          siteLogoDark={siteSettingsData?.siteLogoDark}
+          siteName={siteSettingsData?.siteName}
+        />
+        <main className="flex min-h-screen items-center justify-center px-6 pt-24 pb-8">
+          <CanvasLazyPanelLoader
+            className="min-h-0 bg-transparent text-white/65"
+            label="正在打开生图项目..."
+          />
+        </main>
+      </div>
+    ) : null;
+
   const workflowStylePanel = useMemo(
     () => (
       <AgentWorkflowPanelDarkV2
@@ -9206,6 +9256,16 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
       );
     }
 
+    if (agentProjectOpeningScreen) {
+      return (
+        <>
+          {agentProjectOpeningScreen}
+          {loginDialogElement}
+          {projectLoadingBadge}
+        </>
+      );
+    }
+
     return (
       <>
         <AgentGenerationWorkspaceDarkV2
@@ -9258,6 +9318,7 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
           onResultPreviewUrlsChange={handleAgentResultPreviewUrlsChange}
           onWorkspaceStateChange={setAgentWorkspaceState}
           projectId={agentProjectId}
+          key={agentProjectId}
           resultCollections={agentProjectResultCollections}
           selectedAgentPresetId={
             isAgentWorkspaceEnabled ? effectiveSelectedAgentPresetId : null
diff --git a/components/agents/AgentWorkflowParticleScatter.tsx b/components/agents/AgentWorkflowParticleScatter.tsx
index 6243dfcd1..8cdcbdd46 100644
--- a/components/agents/AgentWorkflowParticleScatter.tsx
+++ b/components/agents/AgentWorkflowParticleScatter.tsx
@@ -45,7 +45,7 @@ export function AgentWorkflowParticleScatter({
     >
       <iframe
         aria-hidden="true"
-        className="absolute border-0 bg-transparent"
+        className="pointer-events-none absolute border-0 bg-transparent"
         loading="eager"
         src={src}
         style={{