Codex Desktop on Windows: media preview closes when interacting with the scrollbar

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

26.721.3996.0

What subscription do you have?

Pro

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64 (Windows 11 Home)

What issue are you seeing?

When a media preview is open in Codex Desktop on Windows, pressing the left mouse button on a visible scrollbar thumb immediately closes the preview. The scrollbar handle therefore cannot be grabbed or dragged.

The scrollbar interaction appears to be handled as a click outside the preview (or another dismiss action) instead of as interaction with the preview's scrollable area.

What steps can reproduce the bug?

1. Open Codex Desktop on Windows.
2. Open a media attachment in the preview window, using media large enough that the preview shows a scrollbar. (zoom in so both vert/hori appear)
3. Move the cursor over the scrollbar thumb.
4. Press the left mouse button to begin dragging the thumb.
5. Observe that the media preview closes immediately after release, before the scrollbar can be dragged correctly.

What is the expected behavior?

Clicking or dragging the scrollbar thumb should scroll the media preview and must not dismiss it. The preview should close only through its explicit close control, Escape, or a genuine click outside the preview.

Additional information

This is observed in the Windows Codex Desktop app. It may be caused by the scrollbar pointer/click event propagating to the preview backdrop's dismiss handler.