Codex App window leaks a thin edge onto the adjacent monitor in dual-screen setup

What version of the Codex App are you using (From “About Codex” dialog)?

26.623.42026

What subscription do you have?

Pro

What platform is your computer?

Windows11 x64

What issue are you seeing?

When using Codex App with a dual-monitor setup, the app window appears to leak a thin visible edge onto the adjacent monitor. It looks like the window bounds or rendering area slightly exceeds the intended display.

What steps can reproduce the bug?

1. Connect two monitors in extended display mode.
2. Open Codex App.
3. Place or maximize the Codex App window on one monitor.
4. Observe the adjacent monitor.

What is the expected behavior?

The Codex App window should stay fully contained within the selected monitor. No part of the app should be visible on the other monitor.

Additional information

_No response_