Describe the bug

Virtual machine running Windows 11 24H2 without any customization utility installed. I used the 25H2 Enablement Package to switch version to 25H2, although I think the same bug should be in a clean installation. I then installed latest Open Shell and Explorer Patcher to check them. I wanted to replace the default start button with a custom button, but as soon as I click to browse for a custom button there was no File Explorer window on screen and Open Shell Settings would be non-responsive. I had to press CTRL+F4 to close the invisible and useless File Explorer window so I would take control of Open Shell Settings again. The workaround is to manually type the path to the file in the box rather than browse for it.

Area of issue

Start menu

To reproduce

1. Right-click on start button
2. Select Settings
3. Check the box top middle to show all settings
4. Click the Start Button tab
5. Click to select using a custom start button
6. Click the three dots to browse for one, The File Explorer window is not visible, you cannot browse for a button. All you can do it press SHIFT+F4 to close the invisible window and then manually type the path to the custom button.

Expected behavior

Open a File Explorer window to browse to the custom start button (.png image)

Open-Shell version

4.4.196

Windows version

Windows 11 Pro 25H2 build 26200.6725

Additional context

Workaround: The File Explorer window to browse for a custom start button (.png image) is not visible, you cannot browse for a button. All you can do it press SHIFT+F4 to close the invisible window and then manually type the path to the custom button.