# Cursor 3.7.27 Agent Broken on macOS 27 Beta (Darwin 27) cursor-retrieval spawn failed: Unknown system error -86

**URL:** <https://forum.cursor.com/t/cursor-3-7-27-agent-broken-on-macos-27-beta-darwin-27-cursor-retrieval-spawn-failed-unknown-system-error-86/162991>\
**Category:** Bug Reports\
**Tags:** macos, crashes\
**Created:** [June 11, 2026, 6:44am UTC](https://forum.cursor.com/t/cursor-3-7-27-agent-broken-on-macos-27-beta-darwin-27-cursor-retrieval-spawn-failed-unknown-system-error-86/162991 "2026-06-11T06:44:03Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Zhang\_Hongfei](https://avatars.discourse-cdn.com/v4/letter/z/46a35a/32.png) [@Zhang\_Hongfei](https://forum.cursor.com/u/Zhang_Hongfei)\
**Post date:** [July 13, 2026, 5:35am UTC](https://forum.cursor.com/t/cursor-3-7-27-agent-broken-on-macos-27-beta-darwin-27-cursor-retrieval-spawn-failed-unknown-system-error-86/162991/9 "2026-07-13T05:35:18Z")

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yeap, Try these steps in order:

1. **Install Rosetta 2** (most common fix): Open Terminal and run:

2. **Remove quarantine attributes** : Fully quit Cursor and run:

3. **Disable Instant Grep indexing** : Cursor Settings \> Indexing & Docs \> turn off “Index Repositories for Instant Grep (BETA)”, then restart Cursor. The `-86` errors often originate from the retrieval extension this feature uses, which matches your console output.

4. **Try a clean profile** : Run `cursor --profile-temp` from Terminal to rule out any configuration conflicts.

5. **Clean reinstall** : If your previous reinstall didn’t involve fully deleting Cursor from Applications first, try that now and download a fresh copy from [Cursor · Download](https://cursor.com/download).

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