UI not responding despite all efforts

Open 💬 2 comments Opened Jun 12, 2026 by samwisegamge-eth

What version of the Codex App are you using (From “About Codex” dialog)?

Codex 149.0.7827.54

What subscription do you have?

Enterprise

What platform is your computer?

Darwin 25.5.0 arm64 arm

What issue are you seeing?

The Codex app shows "Application Not Responding" immediately on launch and is completely unresponsive. The UI cannot be accessed at all.

Steps taken:

  • Deleted and reinstalled the app
  • Cleared ~/Library/Application Support/Codex, ~/Library/Caches/Codex, and ~/Library/Logs/Codex
  • Force-killed all Codex processes via pkill -f Codex
  • Tested on both WiFi and mobile hotspot

Diagnostic logs show a disk write throttle event (June 8-9) where the process wrote 8,589 MB over ~13 hours, exceeding macOS's limit of 99.42 KB/s. After clearing all app data, the app still fails to load.

The bundled CLI (/Applications/Codex.app/Contents/Resources/codex) responds correctly, suggesting the issue is with the UI layer rather than the underlying binary.

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What steps can reproduce the bug?

The bug cannot be reliably reproduced from scratch — the app entered an unresponsive state and has not recovered since.

What is the expected behavior?

_No response_

Additional information

_No response_

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