Freeze and memory leak

[Serik_Kozhanov]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After update to 2.0.43 cursor freezes and there is memory leak. I am unable to work. If I reopen the cursor and open any file it freezes again.

Steps to Reproduce

Open cursor, open any go or md file

Expected Behavior

Work normally

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.43
VSCode Version: 1.99.3
Commit: 8e4da76ad196925accaa169efcae28c45454cce0
Date: 2025-10-30T18:49:27.589Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 25.0.0

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the report. Several users are seeing similar freezes on v2.0.43. Let’s narrow it down:

Quick check, known bug:

• Open Settings (Cmd + ,) and search for “showTabs”
• If you see ”workbench.editor.showTabs": "single", change it to ”multiple" or remove it
• Restart Cursor
  This setting causes freezes in v2.0.43.

If that doesn’t help, please share:

• Open Help > Toggle Developer Tools, then try opening a file, any errors in the console?
• Test with extensions disabled: run cursor --disable-extensions from Terminal, does it still freeze?
• Does it freeze immediately on opening any file, or only when Agent is active?

Let me know what you find.

[Serik_Kozhanov]

Hey,
Changing to ”workbench.editor.showTabs": "multiple" helped. Thanks a lot!