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codex - 💡(How to fix) Fix Windows desktop: bottom panel flashes briefly then immediately disappears

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Error Message

  • Windows Error Reporting, Event ID 1001
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What version of the Codex App are you using (From “About Codex” dialog)?

26.527.3686.0

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

On Windows Codex desktop, when I toggle the integrated terminal / bottom panel, the bottom panel appears momentarily but immediately disappears again. The toggle action seems to run, but the bottom panel cannot stay open, making the integrated terminal unusable.

What steps can reproduce the bug?

  1. Open the Codex desktop app on Windows.
  2. Open any thread/workspace.
  3. Toggle the integrated terminal / bottom panel.
  4. Observe that the bottom panel appears briefly, then immediately disappears.
  5. Try toggling it again.

The issue is reproducible across workspaces and appears to affect the bottom panel specifically.

What is the expected behavior?

The integrated terminal / bottom panel should remain open after toggling it, and should only close when I toggle it again or explicitly close it.

Additional information

Environment details:

  • Platform: Windows
  • Codex package: OpenAI.Codex_26.527.3686.0_x64__2p2nqsd0c76g0
  • Codex app version: 26.527.3686.0
  • Executable version from Windows Event Log: 148.0.7778.179
  • Install location: C:\Program Files\WindowsApps\OpenAI.Codex_26.527.3686.0_x64__2p2nqsd0c76g0

After repeated attempts and troubleshooting, Windows Event Viewer recorded:

  • Application Hang, Event ID 1002
  • Windows Error Reporting, Event ID 1001
  • Event name: MoAppHang
  • Package: OpenAI.Codex_26.527.3686.0_x64__2p2nqsd0c76g0

Troubleshooting already tried:

  • Restarted Codex
  • Restarted Windows
  • Repaired/reset app
  • Uninstalled and reinstalled Codex
  • Checked Windows Defender Protection History: no quarantined or blocked Codex files
  • Terminated all Codex, codex, and node_repl processes
  • Renamed/reset:
    • %LOCALAPPDATA%\OpenAI\Codex
    • %LOCALAPPDATA%\Packages\OpenAI.Codex_2p2nqsd0c76g0\LocalCache\Roaming\Codex\web\Codex
  • Relaunched with:
    • --disable-gpu --disable-gpu-compositing

The issue persisted after all of the above.

One additional note: the day before this started, I began setting up a Codex connection/link with my phone, but I did not complete that setup. I am not sure whether it is related.

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