comfyui gone crazy after update and error when trying to close workflows

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Your question

On loading comfyui, i get a work flow that says i have missing nodes. I don`t as been using them for months. closes that pop up and the one behind saying to download a model.

I then go to close the workflow , it wont and gives me the posted error in the top corner.

I then have to close the browser tab. close the command window and try again.
i then cant do NOTHING!!! as keeps loading that workflow on each boot and same error cycle

### Logs

```powershell

```

### Other

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-9980-comfyui-gone-crazy-after-update-and-error-when-trying-to-close-workflows-3246d73d365081a79aeef06e99e2341c) by [Unito](https://www.unito.io)