diff --git a/ui/src/ui/app-scroll.test.ts b/ui/src/ui/app-scroll.test.ts
index 0f7cedede9c..b75fd3ce7f4 100644
--- a/ui/src/ui/app-scroll.test.ts
+++ b/ui/src/ui/app-scroll.test.ts
@@ -11,7 +11,7 @@ function createScrollHost(overrides: {
   scrollTop?: number;
   clientHeight?: number;
   overflowY?: string;
-}) {
+} = {}) {
   const {
     scrollHeight = 2000,
     scrollTop = 1500,
diff --git a/ui/src/ui/app-scroll.ts b/ui/src/ui/app-scroll.ts
index 55106f4fd1d..f31977b9dce 100644
--- a/ui/src/ui/app-scroll.ts
+++ b/ui/src/ui/app-scroll.ts
@@ -64,7 +64,7 @@ export function scheduleChatScroll(host: ScrollHost, force = false) {
       target.scrollTop = target.scrollHeight;
       host.chatUserNearBottom = true;
       host.chatNewMessagesBelow = false;
-      const retryDelay = force ? 150 : 120;
+      const retryDelay = effectiveForce ? 150 : 120;
       host.chatScrollTimeout = window.setTimeout(() => {
         host.chatScrollTimeout = null;
         const latest = pickScrollTarget();
diff --git a/ui/src/ui/app.ts b/ui/src/ui/app.ts
index 8ddc93625e9..001b5bdd774 100644
--- a/ui/src/ui/app.ts
+++ b/ui/src/ui/app.ts
@@ -252,7 +252,7 @@ export class OpenClawApp extends LitElement {
   private chatScrollTimeout: number | null = null;
   private chatHasAutoScrolled = false;
   private chatUserNearBottom = true;
-  chatNewMessagesBelow = false;
+  @state() chatNewMessagesBelow = false;
   private nodesPollInterval: number | null = null;
   private logsPollInterval: number | null = null;
   private debugPollInterval: number | null = null;