Loading aborted due to error reloading workflow data

### Custom Node Testing

- [x] 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

Loading aborted due to error reloading workflow data
TypeError: this.widgets.values().filter is not a function

All worked fine yesterday. No changes or updates. Then today, fails on launch or if any workflow is loaded. Searched, others had same issue in last two years, but no fix found.

### Logs

```powershell

```

### Other

_No response_

---

*This issue is transferred from: https://github.com/comfyanonymous/ComfyUI/issues/10826*

Original issue was created by @FilipeF12 at 2025-11-21T20:16:24.000Z

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-6813-Loading-aborted-due-to-error-reloading-workflow-data-2b26d73d365081beb3a9d7240f88585b) by [Unito](https://www.unito.io)