Changing Conversation view settings & clicking Apply causes the Settings window to go behind the GUI

Using the latest V11.0.1267 on Mac OS 27.01 or Windows 11 Pro (26H2), when i click “Menu / Settings / Mail / Conversations” its set on default to Show conversations in all views.

If i then change to either “Show conversations in message detail only” or “Disable conversations” and click “Apply”, the Settings window goes behind the main GUI. I can replicate this everytime.

I tested here and see the same thing as well. (macOS 27.0.1, V11.0.1267)

Side note:
Using the AltTab-app makes it possible to get the Settings windows back again, but is of course not a solution. (But it helps with macOS´s odd window management, or the lack thereof…)