Cursor crashing with Error 5!

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

regular every 5-10 min crash - error 5 - reopening wiring another 10 min then crash again.

Steps to Reproduce

comes by itself very 5-10 min, reopening Cursor and then after a certain time frame it crashes again.

Expected Behavior

Stable IDE!!!

Operating System

MacOS

Version Information

Version: 2.5.26 (Universal)
VSCode Version: 1.105.1
Commit: 7d96c2a03bb088ad367615e9da1a3fe20fbbc6a0
Date: 2026-02-26T04:57:56.825Z
Build Type: Stable
Release Track: Early Access
Electron: 39.4.0
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

Opus 4.6 and also Codex/GPT 5.3

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, this is a known issue. Several macOS ARM64 users hit the same code: 5 renderer crash. Let’s try to narrow it down.

Quick fixes that helped other users:

  1. Start a fresh chat. If your current chat has a lot of modified files or a long history, this alone fixed it for some users.

  2. Check if your project is in an iCloud-synced folder like Desktop or Documents. If it is, move it to a local path like ~/dev.

  3. Reset Cursor data:

    cd ~/Library/Application\ Support/
    mv Cursor CursorBackup
    

    This resets settings but keeps a backup.

  4. Test without extensions:

    cursor --disable-extensions
    
  5. Disable GPU acceleration:

    cursor --disable-gpu
    

If none of that helps, I’ll need a few things to escalate:

  • Logs: Help > Open Logs Folder, specifically main.log around the crash time
  • Help > Toggle Developer Tools > Console. Screenshot any errors
  • Are you using MCP servers?
  • Your list of installed extensions
  • Is the project on an external or network drive?

Related threads for context:

Let me know how it goes.

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