UI not responding despite all efforts
Open 💬 2 comments Opened Jun 12, 2026 by samwisegamge-eth
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
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_
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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This happens to me everyday too. Once on launch or start a new instruction, the UI just freezes immediately and does not responding for about 30 seconds before it recover from it and ready for another one. WIN 11, 16GB RAM