diff --git a/electron/main/index.ts b/electron/main/index.ts
index af7152835..dd0394ed0 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -312,6 +312,24 @@ function registerIpcHandlers() {
   });
   ipcMain.handle('get-app-version', () => app.getVersion());
   ipcMain.handle('get-backend-port', () => backendPort);
+  ipcMain.handle('restart-backend', async () => {
+    try {
+      if (backendPort) {
+        log.info('Restarting backend service...');
+        await cleanupPythonProcess();
+        await checkAndStartBackend();
+        log.info('Backend restart completed successfully');
+        return { success: true };
+      } else {
+        log.warn('No backend port found, starting fresh backend');
+        await checkAndStartBackend();
+        return { success: true };
+      }
+    } catch (error) {
+      log.error('Failed to restart backend:', error);
+      return { success: false, error: String(error) };
+    }
+  });
   ipcMain.handle('get-system-language', getSystemLanguage);
   ipcMain.handle('is-fullscreen', () => win?.isFullScreen() || false);
   ipcMain.handle('get-home-dir', () => {
diff --git a/electron/main/webview.ts b/electron/main/webview.ts
index 20816fd1b..123d464d2 100644
--- a/electron/main/webview.ts
+++ b/electron/main/webview.ts
@@ -112,18 +112,23 @@ export class WebViewManager {
         }
         console.log(`Webview ${id} navigated to: ${navigationUrl}`)
         if (webViewInfo.isActive && webViewInfo.isShow && navigationUrl !== 'about:blank?use=0' && navigationUrl !== 'about:blank') {
-          console.log("did-navigate", id, url)
-          this.win?.webContents.send("url-updated", url);
+          console.log("did-navigate", id, navigationUrl)
+          this.win?.webContents.send("url-updated", navigationUrl);
           return
         }
         webViewInfo.view.setBounds({ x: -1919, y: -1079, width: 1920, height: 1080 })
         const activeSize = this.getActiveWebview().length
         const allSize = Array.from(this.webViews.values()).length
         if (allSize - activeSize <= 3) {
-          const newId = Array.from(this.webViews.keys()).length + 2
-          this.createWebview(newId.toString(), 'about:blank?use=0')
-          this.createWebview((newId + 1).toString(), 'about:blank?use=0')
-          this.createWebview((newId + 2).toString(), 'about:blank?use=0')
+          const existingKeys = Array.from(this.webViews.keys()).map(Number).filter(n => !isNaN(n))
+          const maxId = existingKeys.length > 0 ? Math.max(...existingKeys) : 0
+          const startId = maxId + 1
+
+          // Create webviews sequentially to avoid race conditions
+          for (let i = 0; i < 3; i++) {
+            const nextId = (startId + i).toString()
+            this.createWebview(nextId, 'about:blank?use=0')
+          }
         }
 
         // setTimeout(() => {
@@ -242,8 +247,12 @@ export class WebViewManager {
     }
   }
 
-  public distroy() {
-    // TODO: Destroy all webviews
+  public destroy() {
+    // Destroy all webviews
+    Array.from(this.webViews.keys()).forEach(id => {
+      this.destroyWebview(id)
+    })
+    this.webViews.clear()
   }
 }
 
diff --git a/src/pages/Setting/Models.tsx b/src/pages/Setting/Models.tsx
index 5bb082586..577119b80 100644
--- a/src/pages/Setting/Models.tsx
+++ b/src/pages/Setting/Models.tsx
@@ -682,9 +682,6 @@ export default function SettingModels() {
 									<SelectItem value="gpt-5">GPT-5</SelectItem>
 									<SelectItem value="gpt-5-mini">GPT-5 mini</SelectItem>
 									<SelectItem value="gpt-5-nano">GPT-5 nano</SelectItem>
-									<SelectItem value="claude-opus-4-1-20250805">
-										Claude Opus 4.1
-									</SelectItem>
 									<SelectItem value="claude-sonnet-4-20250514">
 										Claude Sonnet 4
 									</SelectItem>
diff --git a/src/store/chatStore.ts b/src/store/chatStore.ts
index 7069fa406..64649dabe 100644
--- a/src/store/chatStore.ts
+++ b/src/store/chatStore.ts
@@ -497,7 +497,7 @@ const chatStore = create<ChatStore>()(
 						setTaskAssigning(taskId, taskAssigning)
 						return;
 					}
-					
+
 					// Activate agent
 					if (agentMessages.step === "activate_agent" || agentMessages.step === "deactivate_agent") {
 						let taskAssigning = [...tasks[taskId].taskAssigning]
@@ -607,7 +607,7 @@ const chatStore = create<ChatStore>()(
 						if (taskAssigning && taskAssigning[assigneeAgentIndex]) {
 							// Check if task already exists in the agent's task list
 							const existingTaskIndex = taskAssigning[assigneeAgentIndex].tasks.findIndex(item => item.id === task_id);
-							
+
 							if (existingTaskIndex !== -1) {
 								// Task already exists, update its status
 								taskAssigning[assigneeAgentIndex].tasks[existingTaskIndex].status = "running";
@@ -624,7 +624,7 @@ const chatStore = create<ChatStore>()(
 								taskAssigning[assigneeAgentIndex].tasks.push(taskTemp ?? { id: task_id, content, status: "running", });
 							}
 						}
-						
+
 						// Only update or add to taskRunning, never duplicate
 						if (taskRunningIndex === -1) {
 							// Task not in taskRunning, add it
@@ -1638,7 +1638,17 @@ const chatStore = create<ChatStore>()(
 		clearTasks: () => {
 			const { create } = get()
 			console.log('clearTasks')
-			fetchDelete('/task/stop-all')
+
+			window.ipcRenderer.invoke('restart-backend')
+				.then((res) => {
+					console.log('restart-backend', res)
+				})
+				.catch((error) => {
+					console.error('Error in clearTasks cleanup:', error)
+				})
+
+
+			// Immediately create new task to maintain UI responsiveness
 			const newTaskId = create()
 			set((state) => ({
 				...state,