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codex - 💡(How to fix) Fix Codex desktop on macOS shows blurred white overlay at certain window widths [2 comments, 2 participants]

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openai/codex#19237•Fetched 2026-04-24 05:58:15
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What version of the Codex App are you using (From “About Codex” dialog)?

26.422.21459 (2049)

What subscription do you have?

plus

What platform is your computer?

macOS：15.7.5 (24G624)

What issue are you seeing?

Issue: When the app window width crosses a certain threshold, a layout/rendering bug appears. Window height does not affect the issue.

Symptoms:

  • In the Plugins and Skills pages, part of the UI gets covered by a blurred white overlay.
  • In the chat window, similar blurred white regions can appear near the lower area.
  • Clicking the affected area can still open the underlying popup/popover content correctly.
  • After closing or returning, the blurred overlay remains visible.
  • If I narrow the window below a certain width, the issue disappears.
  • If I widen the window again past that width, the issue returns.

Expected behavior: Popovers, sheets, or overlays should render normally without leaving a blurred white layer covering page content.

Actual behavior: A blurred white overlay appears at specific window widths, as if the overlay background is rendered but the content layer is misplaced, clipped, or hidden.

Notes:

  • This is reproducible on the built-in display.
  • The issue is width-dependent, not height-dependent.
  • Changing macOS display scaling does not prevent it.
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What steps can reproduce the bug?

What is the expected behavior?

No response

Additional information

No response

extent analysis

TL;DR

Adjusting the window width to avoid the specific threshold where the layout/rendering bug appears can serve as a temporary workaround.

Guidance

  • Verify the issue by resizing the window to different widths and observing when the blurred white overlay appears or disappears.
  • Check if updating the Codex App to a newer version (if available) resolves the issue, as it might be a known bug that has been fixed.
  • Test the app on a different display or with different display settings to see if the issue is specific to the current setup.
  • Consider reporting the issue with more detailed steps to reproduce, as the current information might not be sufficient for a definitive fix.

Example

No code snippet is provided due to the lack of specific technical details about the Codex App's implementation.

Notes

The provided information suggests a rendering issue tied to specific window widths, but without more technical details about the app's architecture or the exact steps to reproduce the bug, a definitive solution cannot be offered.

Recommendation

Apply workaround: Given the information, the best course of action seems to be avoiding the window widths that trigger the bug until a potential fix is released or more detailed troubleshooting can be performed.

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