Cursor IDE crashes fequently

[Alan_Ranger]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

the agent will be running code or planning next move and seems to be taking forever then eventually it crashes with - The window terminated unexpectedly (reason 'oom, code: ‘-536870904’)

Steps to Reproduce

Its random but frequent

Screenshots / Screen Recordings

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.20 (user setup)
VSCode Version: 1.105.1
Commit: b3573281c4775bfc6bba466bf6563d3d498d1070
Date: 2025-12-12T06:29:26.017Z
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 10.0.26200

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the report. This is a known issue, the team is working on a fix.

For diagnostics, please:

1. Run Cursor in safe mode: cursor --disable-extensions and check if crash persists
2. Before the next crash: Ctrl+Shift+P → Developer: Open Process Explorer and take a screenshot
3. Try on another/empty project - does crash happen there too?

Also share:

• List of installed extensions
• System RAM amount
• Any configured MCP servers?
• Approximate length of open chats (message count)

If crash is project-specific, temporary workaround - clear workspace storage:

1. Close Cursor
2. Navigate to %APPDATA%\Cursor\User\workspaceStorage
3. Find project folder and delete it
4. Reopen project (this will clear chat history for the project)

Let us know the safe mode test results.