diff --git a/backend/python/app/api/im_bot_user.py b/backend/python/app/api/im_bot_user.py
index 2559f97..43f7c45 100644
--- a/backend/python/app/api/im_bot_user.py
+++ b/backend/python/app/api/im_bot_user.py
@@ -458,9 +458,8 @@ def _wechat_receiver_loop(account_id: int):
                     except Exception:
                         pass
                     if ret in (-2, -14):
-                        # 会话/鉴权失效：标记需重扫并停止接收线程
+                        # 会话/鉴权失效：标记需重扫但继续循环，让下一轮 poll 自然检测过期
                         _mark_wechat_expired(d["id"])
-                        return
             time.sleep(1)
         except Exception:
             time.sleep(5)