Hey, thanks for the report.
This is a known issue. After an update, old chats may fail to load due to auth errors, even though new chats work fine. The team is aware and is working on a fix.
Try this workaround:
- Cursor Settings (gear icon) → Sign Out
- Restart Cursor
- Sign in again
If that doesn’t help, you can try restoring the history manually:
Windows: %APPDATA%\Cursor\User\workspaceStorage\
Find your project folder, open state.vscdb with DB Browser for SQLite, and look for keys like workbench.panel.aichat.view.... Or check ~/.cursor/projects/<project_name>/agent-transcripts, there may be .txt files with your chat history.
Full recovery guide: How to extract full chat history from workstorage - #2 by deanrie
For the future, I’d recommend the SpecStory extension for automatic chat backups.
Can you share a screenshot of the Network tab in Developer Tools when you try to open an old chat? That’ll help us see what’s failing with a 401 error.