After patch 4.4 i keep getting these black screens that just make my computer stop responding and i have to turn it off and turn it on again so i can recover my PC, this happen during certain mechanics in alphascape or in the cutscenes of the new dungeons.

This never happened before, also i had a huge fps drop in alphascape 1.0 that forced me to play in DX9 with everything turned off and i can still get a crash anyways.

My specs are
cpu: AMD FX 8150
ram: 16gb
gpu: radeon RX480 (8gb)
o.s: Windows 7 Professional 64bits

I have everything up to date except my o.s of course, but i had to rollback to Windows 7 because i had constant fps drop in windows 10 with directx 11, everything worked just fine till 4.4 patch.