Something is very weird about window displays in general. Take the list of wi-fi networks; sometimes the entire thing will just stop appearing, doing nothing when you click the icon! I eventually figured out that if I use Windows Search to pull up the WiFi Settings panel, and manually click the list of networks there, then the list is fixed (it does not appear in the Settings window though; it just pops up where it was supposed to be, near the taskbar icon).

I just don’t understand; I cannot fathom what implementation could be so complex that they can’t achieve full test coverage on something like whether or not a damned window appears when required.