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Codex Issues / #34065

Codex constantly hung with (Not Responding)

Open 💬 5 comments Opened Jul 18, 2026 by keithhagood
💡 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)?

26.715.4045.0

What subscription do you have?

Pro

What platform is your computer?

Windows 11

What issue are you seeing?

I have a problem with Codex / ChatGPT app hanging most of the time with the title bar changing from ChatGPT to ChatGPT (Not Responding) while it hangs for a couple of minutes. Then it responds for a few seconds before going back to not responding. I uninstalled the application, restarted my computer and then reinstalled. I've also cleared the cache from my computer but even after doing all this the application still hanging (Not Responding). I can use the app on my iPhone to remotely interact with the computer that is running Codex and it doesn't hang and seems to update my coding project in Visual Studio from the prompts sent from my iPhone.

What steps can reproduce the bug?

This is occurring all the time. Just starting the application produces the issue.

What is the expected behavior?

I expect to be able to interact with the application and not have it be unresponsive all the time.

Additional information

_No response_

View original on GitHub ↗

5 Comments

github-actions[bot] contributor · 1 month ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

  • #33884
  • #33996
  • #33909
  • #33873

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rudym · 1 month ago

I am seeing the same issue with OpenAI.Codex 26.715.4045.0 on Windows 11 x64.

The application freezes whenever I interact with the UI and now sometimes displays ChatGPT stopped unexpectedly. The Update ChatGPT button does nothing.

I also tested with a completely clean .codex directory, but the problem remained, so my existing sessions and configuration are not the cause. The web application works normally.

keithhagood · 1 month ago

Troubleshooting/isolation steps completed:

  1. Completely uninstalled Codex/ChatGPT, rebooted Windows, and reinstalled from the Microsoft Store. The problem persisted.
  1. Windows Task Manager consistently shows the main ChatGPT.exe process as "Not responding" at approximately 0% CPU while the other ChatGPT/Codex child processes remain running.
  1. Windows Analyze Wait Chain reports only "ChatGPT.exe is not responding" and does not identify an external process dependency.
  1. Codex logs from multiple launches contain repeated internal Git-worker failures such as:

"git process timed out after 60000ms"

However, running the equivalent Git operations manually against my repository completes normally in approximately 20-40 milliseconds, including git status, git rev-parse --show-toplevel, and git rev-parse --git-common-dir.

  1. I tested whether my normal Git repository was responsible by making the repository path unavailable before launching Codex. Codex still immediately hung.
  1. Most importantly, I performed a completely clean-profile test. I moved aside both the Microsoft Store Codex application-data directory and my .codex directory.

On the next launch I had to sign into ChatGPT again, complete the first-run onboarding questions, and received a completely new profile with none of my previous projects, chats, or application state.

Codex STILL immediately entered "ChatGPT (Not Responding)."

Having completed the steps above and finding no resolution to the issue I sent the notes above and some additional information related to memory dumps while Codex hangs to support for their review.

c-hui · 1 month ago

I can reproduce this regression on Windows 11 x64 with Microsoft Store package OpenAI.Codex_26.715.4045.0_x64__2p2nqsd0c76g0.

Timeline (Asia/Shanghai, 2026-07-20)

  • 10:09:04: Windows updated Codex from 26.707.12708.0 to 26.715.4045.0.
  • Around 10:10: the new version launched.
  • 10:17: Windows recorded Application Hang event 1002 for ChatGPT.exe.
  • The app repeatedly became Not Responding during normal interaction.

Relevant observations

  • App logs contained PowerShell/Get-CimInstance process-enumeration failures.
  • A bundled executable relocation operation failed with EPERM.
  • Qianxin Tianqing endpoint protection injects its signed helper DLLs into ChatGPT.exe.
  • Endpoint protection also recorded blocked PowerShell -> Microsoft-signed csc.exe process creation, but no direct ChatGPT/Codex detection was recorded.

A/B rollback result

  • I performed an in-place downgrade to the signed Store package 26.707.12708.0 without changing user data or endpoint protection.
  • The old version launched normally.
  • All ChatGPT processes remained responsive.
  • No new Application Hang event was recorded during the observation period.

This strongly suggests a regression in 26.715.4045.0, possibly involving Windows process enumeration/cleanup or compatibility with endpoint-security process injection.

Possibly related:

  • #34260
  • #34107

I can provide sanitized log excerpts and defense-event details if needed.

keithhagood · 1 month ago

Update: As of July 20, the Microsoft Store has updated my Codex desktop installation from version 26.715.4045.0 to 26.715.7063.0. So far, version 26.715.7063.0 appears to be working normally without the repeated “ChatGPT (Not Responding)” hangs I experienced on 26.715.4045.0. I will continue monitoring it. This may indicate that the issue was specific to, or resolved by a change after, build 26.715.4045.0.