Regarding the Debugger Error, I have a thing maybe. I discovered that when my troubled rig was installed, it was selected Windows 10 Pro *N* version. The same USB media installed to another rig (literally exact same hardware!) but just normal Pro, it works fine. Granted I have not swapped out the HDD and tested the error machine but it's literally the only difference I can manage to find.

Maybe it helps, maybe it's coincidence.