More of the same here. EliteDesk 705 with Ryzen CPU, Sure Start, etc.
I've read Ryzen CPU's have covered some security vulnerabilities better than Intel, and perhaps that is actually causing this problem, where an Intel will let this update do what it's doing, the Ryzen CPU does not?
Anyway, I'm blocking this update centrally for now. What a pain. I've tried the steps outlined here, all of them, and nothing is correcting the problem, so I'm just moving on.