Hey, thanks for the report. This error pattern has already been resolved in similar cases.
Primary solution - check MCP servers:
- Open Cursor Settings → MCP
- Disable any enabled MCP servers (this has already fixed identical issues: Bad Request Since Updating to 2.0.38)
- Restart Cursor
If that doesn’t help:
- Try starting a new chat - does everything work in a new chat?
- Cursor Settings → Network → Run Diagnostics
- Reduce context: in Chat settings, try lowering the context window or temporarily disabling some sources
Could you let me know if you have any MCP servers enabled and whether disabling them resolves the issue?