Yup same thing here. Except after black screen goes on for a few seconds, i just get booted from the game and everything else is still ticking along ok.........can't for the life of me work out whats going on as makes no sense.
I also uninstalled Ryzen Master as was getting whea errors and BSOD's every few minutes....all pointing to somne OpenGl issue in win10 Event logger. This now doesn't happen but get black screens.
Ryzen 7 3700x, oc 4.3 via bios, v 1.325. no water cooler yet
Asus Tuff gaming x570 plus mobo
16gb ddr4 ram
asus gtx 1080- gpu