streamSubgraphs seems to miss some nodes

Hello, I've tried to use streamSubgraphs as this:
```
  const { nodeName } = useCoAgent<AgentState>({
    name: "agentx",
    config: {
      streamSubgraphs: true,  //  enables streaming node updates
    }
  });

  useEffect(() => {
    console.log("🔄 Active LangGraph node:", nodeName);
  }, [nodeName]);

```

but I don't get nodeName updates for some nodes in the workflow.