diff --git a/examples/ai-streaming/src/index.tsx b/examples/ai-streaming/src/index.tsx
index c172a666d..e8c98f0b3 100644
--- a/examples/ai-streaming/src/index.tsx
+++ b/examples/ai-streaming/src/index.tsx
@@ -40,7 +40,7 @@ class AIStreamingApp extends Widget {
         this.addChild(this._toolCall);
         this.addChild(this._streamingText);
 
-        setInterval(() => {
+        clearInterval(window.__interval); window.__interval = setInterval(() => {
             this._streamingText.tick();
         }, 50);
     }
diff --git a/packages/ui/src/Form.ts b/packages/ui/src/Form.ts
index bf96ede6b..38d630037 100644
--- a/packages/ui/src/Form.ts
+++ b/packages/ui/src/Form.ts
@@ -138,3 +138,5 @@ export class Form extends Widget {
         }
     }
 }
+
+.catch(err => console.error("Promise.all failed:", err));
\ No newline at end of file