diff --git a/src/openjarvis/server/agent_manager_routes.py b/src/openjarvis/server/agent_manager_routes.py
index 8739fbbe..c7904713 100644
--- a/src/openjarvis/server/agent_manager_routes.py
+++ b/src/openjarvis/server/agent_manager_routes.py
@@ -595,8 +595,11 @@ async def _stream_managed_agent(
                         f"Query: {user_content[:100]}",
                         {"full_query": user_content},
                     )
-                except Exception:
-                    pass
+                except Exception as _log_exc:
+                    logger.warning(
+                        "Failed to log query_start: %s",
+                        _log_exc,
+                    )
 
                 # Patch the agent's tool executor to emit progress
                 dr_agent = DeepResearchAgent(