Agent chats not opening after update – constant ConnectError: [unauthenticated] and full_stripe_profile 401 errors

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Thanks for the screenshot. The No composer data handle found error happens when you click an old chat. Let’s go through all the steps:

Step 1 - Reset auth:

  1. Cursor Settings (gear icon) → Sign Out
  2. Fully close Cursor (make sure the process isn’t still running in Task Manager)
  3. Open Cursor and sign in again
  4. Try opening the old chat

If that didn’t help - Step 2 - Network diagnostics:

  1. Help → Toggle Developer Tools → Network tab
  2. Click the old chat
  3. Look for red lines (failed requests) to api2.cursor.sh
  4. Click a request and screenshot the Headers tab

If you need the history ASAP - Step 3 - Manual recovery:
Full guide: How to extract full chat history from workstorage - #2 by deanrie

This is a known issue after an update, and the team is working on a fix. Let me know what happens after Step 1.