diff --git a/backend/app/utils/workforce.py b/backend/app/utils/workforce.py
index f64a1e7c3..541110253 100644
--- a/backend/app/utils/workforce.py
+++ b/backend/app/utils/workforce.py
@@ -132,7 +132,11 @@ class Workforce(BaseWorkforce):
                 continue
             # Find task content
             task_obj = get_camel_task(item.task_id, tasks)
-            content = task_obj.content if task_obj else ""
+            if task_obj is None:
+                logger.warning(f"[WF] WARN: Task {item.task_id} not found in tasks list during ASSIGN phase. This may indicate a task tree inconsistency.")
+                content = ""
+            else:
+                content = task_obj.content
             # Asynchronously send waiting notification
             task = asyncio.create_task(
                 task_lock.put_queue(
diff --git a/src/store/chatStore.ts b/src/store/chatStore.ts
index 29d39a8ab..a63037833 100644
--- a/src/store/chatStore.ts
+++ b/src/store/chatStore.ts
@@ -589,6 +589,13 @@ const chatStore = create<ChatStore>()(
 
 						const taskRunningIndex = taskRunning!.findIndex((task: TaskInfo) => task.id === task_id);
 
+						// Skip tasks with empty content only if the task doesn't exist in taskInfo
+						// If task exists in taskInfo, we should still process status updates
+						if ((!content || content.trim() === "") && !task) {
+							console.warn(`Skipping task ${task_id} with empty content and not found in taskInfo`);
+							return;
+						}
+
 						if (assigneeAgentIndex === -1) return;
 						const taskAgent = taskAssigning![assigneeAgentIndex];