Cursor Update removed all settings and cannot open past chats

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I closed and reopened cursor ide. On reopen it seemed to have reset and went through the first time setup. I can still see my past chats, but when trying to open one it gets stuck on “loading”.

The error I see in the dev console is “workbench.desktop.main.js:7163 [composer] No composer data handle found [handleDeselectingComposer]”

Steps to Reproduce

I don’t know. I was using as normal, closed and reopened with that I assume was an update.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.39 (user setup)
VSCode Version: 1.105.1
Commit: 60d42bed27e5775c43ec0428d8c653c49e58e260
Date: 2025-11-27T02:30:49.286Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.19045

For AI issues: which model did you use?

I believe it was using Composer

Does this stop you from using Cursor

No - Cursor works, but with this issue

2

Hey, thanks for the report. We’ve confirmed this is a known Composer data integrity bug that can be triggered by an app update. Unfortunately, once corrupted, local chats usually can’t be restored.

What to try:

  • Fully restart Cursor
  • Try creating a new chat - if it works, this confirms the issue is limited to old chats
  • For saved chats: check the developer console (F12) and copy any red errors

While a fix is being released:

  • Export important chats (three dots → Export Chat)
  • Install the SpecStory extension for automatic backups

If new chats also don’t work, share the console errors and we’ll conduct further diagnostics.