I've managed to reproduce Win+B problem, but not Alt/Win+Tab ones. Do you have anything interesting in the debug log if you restart explorer.exe while DebugView is started? Does Task View work from taskbar?
Sure, but taskbar will show window icons, not app icon.
I understand. But with Windows 11 changing very much each month, you don't have luxury of postponing update of SAB which replaces part of the OS.
I need a crash dump please
1) Import this registry key http://startisback.com/Enable_Crash_Reports.reg
2) Create C:\dumps folder
3) Crash
4) Send me dmp file from C:\dumps folder