Editor freezes, app not responsive when editing a file

Hey, thanks for the report. Editor freezing during editing in version 2.2.20 on macOS is a known issue tied to one specific setting.

Cause: If you have this in your settings.json:

"workbench.editor.showTabs": "single"

It directly causes freezing during any AI file editing.

Fix:

  1. Open Cmd+, (Settings)
  2. Search: workbench.editor.showTabs
  3. Change from ”single" to ”multiple" (or delete the line)
  4. Reload

This should fix it completely. If it still freezes:

  • Clear chat history: ~/Library/Application Support/Cursor/User/workspaceStorage
  • Disable hardware acceleration: Cmd+Shift+P > “Preferences: Configure Runtime Arguments” > ”disable-hardware-acceleration": true

The team knows about the single tab mode issue and is working on a fix.

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