diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
index 0f6296674..60af13028 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
@@ -460,6 +460,14 @@ export function useDirectProjectChatController({
         if (!invoke) return;
         invoked = true;
         await runTurn(invoke, nextProjectPath, input);
+      } catch (error) {
+        // 写权限门等前置步骤抛出时不能只留一个未处理的 rejection：回合会静默失败，
+        // 已经乐观追加的用户消息也没有任何解释。
+        if (projectPathRef.current === nextProjectPath) {
+          onRuntimeError(
+            error instanceof Error ? error.message : String(error),
+          );
+        }
       } finally {
         setTurnCancelling(false);
         // 权限门没放行时本轮从未发出：不刷新清单，也不推进队列，等确认后重跑。