I will open a couple of issues for these. They will be resolved in the 2021.9.0 release due out September 14th. If I get them resolved before then, I can provide pre-release builds with the fixes.
Solved:
After I noticed this error (it appears for less then a second):
I solved that by allowing scripts to run as CurrentUser and as LocalMachine.
set-ExecutionPolicy -ExecutionPolicy Bypass -Scope CurrentUser
set-ExecutionPolicy -ExecutionPolicy Bypass -Scope LocalMachine