codex - 💡(How to fix) Fix codex App Unable to open, stuck in the entry interface, interface flashing [1 comments, 2 participants]

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openai/codex#20102Fetched 2026-04-29 06:22:59
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What version of the Codex App are you using (From “About Codex” dialog)?

26.422.62136

What subscription do you have?

plus

What platform is your computer?

Microsoft Windows NT 10.0.22631.0 x64

What issue are you seeing?

A few days ago, I was able to enter, but today I am unable to open CodexApp. I did not modify any Codex environment, and after startup, it got stuck on the entrance interface and the interface flickered. I uninstalled and reinstalled it, but it doesn't work. After modifying the environment variable CODEX_HOME, I was able to enter normally, but my session data was lost.

What steps can reproduce the bug?

open the codex App

What is the expected behavior?

Normal operation

Additional information

I'm not quite sure.

extent analysis

TL;DR

Modifying the CODEX_HOME environment variable may resolve the issue, but it results in lost session data.

Guidance

  • Verify that the CODEX_HOME environment variable is correctly set before and after modification to understand its impact on the application.
  • Try resetting the CODEX_HOME variable to its original value after a successful login to see if session data can be preserved.
  • Check for any other environment variables that might be influencing the Codex App's behavior.
  • Consider reaching out to the Codex App support team for further assistance, as the issue persists even after reinstallation.

Notes

The provided information suggests that modifying the CODEX_HOME variable allows the application to function, but at the cost of lost session data. However, the root cause of the issue and why modifying this variable resolves it are unclear.

Recommendation

Apply workaround: Modify the CODEX_HOME environment variable as a temporary solution, but be aware that this will result in lost session data.

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