Eventually it would be either Win7 or Win10/11 look, don't see the need to invent something in the middle. Would you show your All Programs looking after and before?
Well the explanation is simple - there's nothing to show in pinned / recent, so All Programs is shown instead. You can force behavior with StartMenuDefaultView=(DWORD)0 in HKCU\Software\StartIsBack
It crashes due to SAB building settings cache and ... uhm some handwrinting ink recognizer partially removed? Search in settings would also crash here I believe.
You can create Start_SearchPCSettings = (DWORD)0 in HKCU\Software\StartIsBack to workaround that
Capture a crash dump, video is unhelpful.
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