Windows: Severe UI lag and "Not Responding" after updating Codex Desktop to v26.707.72221
What version of the Codex App are you using (From “About Codex” dialog)?
26.707.72221
What subscription do you have?
ChatGPT Plus
What platform is your computer?
"$((Get-CimInstance Win32_OperatingSystem).Caption) $([Environment]::OSVersion.Version) $([Environment]::Is64BitOperatingSystem ? 'x64' : 'x86')"
What issue are you seeing?
After updating Codex Desktop to version 26.707.72221, the entire Codex interface becomes extremely laggy.
Symptoms:
- Moving the mouse inside the Codex window causes severe stuttering.
- Clicking anywhere in the Codex UI freezes the application.
- Scrolling is very slow.
- Windows frequently reports "ChatGPT (Not Responding)".
- CPU, RAM and Disk usage remain normal while this happens.
- ChatGPT Classic works perfectly on the same machine.
- Only Codex is affected.
I completely uninstalled and reinstalled the application, but the issue still exists.
Multiple Windows users have reported similar issues after this update.
<img width="1005" height="638" alt="Image" src="https://github.com/user-attachments/assets/43d43d58-d2e6-4211-8b9a-edeba930a78f" />
<img width="540" height="510" alt="Image" src="https://github.com/user-attachments/assets/e1fbf191-02bc-4a52-85be-bbe2c4092b95" />
What steps can reproduce the bug?
Feedback ID: no-active-thread-019f69bd-2c61-7d02-afda-e552bec5b324
What is the expected behavior?
The Codex interface should remain responsive and perform similarly to previous versions.
Mouse movement, clicking and scrolling should be smooth, just like ChatGPT Classic.
Additional information
_No response_
4 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Additional crash information from Windows Event Viewer:
Event ID: 1000 (Application Error)
App Name:
ChatGPT.exe
Package:
OpenAI.Codex_26.707.9981.0_x64
Module:
unknown
Exception Code:
0xc06d007f
The crash is consistently recorded by Windows Event Viewer when the Codex UI becomes unresponsive.
This information comes from Windows Event Viewer (Application Error).
<img width="866" height="1036" alt="Image" src="https://github.com/user-attachments/assets/55602375-74fc-42a0-8f11-5886aba18913" />
Updating to the latest version appears to have resolved the issue on my machine. Thanks!
This isn't fixed...