Material Preview window has an uninteractable dropdown when converting it to a floating window

Steps to reproduce:

1. Create a new project
2. Create a new material
3. Select the newly created material
4. In the Inspector window, navigate to the Preview pane, find the kebab (three dots) icon, and press it
5. Select "Convert to Floating Window".
6. In the newly opened floating window, attempt to click the dropdown menu at the top

Actual result: The dropdown menu is uninteractable. Two blue artifacts appear when clicking it
Expected result: The name of the material is shown instead of the dropdown being there

Reproducible with versions: 6000.5.0b1 (c1f81ff5b082), 6000.5.0b2
Not reproducible with versions: 6000.5.0a9

Tested on (OS): macOS Sequoia 15.7.4 (M1)