Sidebar flickers and changes color/transparency when opening other apps
Open 💬 2 comments Opened Jun 12, 2026 by MatthiasCantini
💡 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)?
Version 26.609.30741 • Released 11.06.2026
What subscription do you have?
Plus
What platform is your computer?
Microsoft Windows NT 10.0.22631.0 x64
What issue are you seeing?
When opening or switching to other apps, the sidebar briefly flickers. During this flicker, its color and transparency appear to change unexpectedly.
What steps can reproduce the bug?
Open the app.
Keep the sidebar visible.
Open or switch to another app.
Observe the sidebar flickering or changing color/transparency.
Especially when MS Edge is opened behind Codex and i open and close VS Code. Doesnt happen every time though
What is the expected behavior?
The sidebar should remain visually stable.
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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Flickering came back in Version 26.616.32156 • Released 19.06.2026
When ALT-TABing in and out it flickers as well