Game Lock Up

Since patch 9.20 my entire client will freeze when loading games to the point where task manager can't even kill it... then i have to reboot. I vaguely suspect its an interaction with discord, but that wasn't happening in patch 9.19.... This is a brand new solid state gaming computer with windows 10 so...WTF it literally immediately started happening when you implemented the new login screen. like, my computer crashed because of it... and it continues to when i enter games.

Edit: Oh and its real cute how I get "you are not elligble for loot due to AFK behavior" when its YOUR FAULT. Thanks.