Crashes since recent hotfix

Since the most recent hotfix, the game has crashed twice for me. Complete freeze, sound still on, no reaction to alt+F4, only way to close the game is to shut down the entire PC. It happened once against the Valkyrie squad and once in the final stage of the Agonizer bossfight. Both times a lot of things were going on at the same time, so might have to do with that.
I wanna emphasize that this is the first time I have been experiencing crashes with the game and that it runs fine on my PC. It’s particularily annoying since it always happened in situations when I had almost won and put a lot of effort into a fight (Agonizer on M4 is a pain in the ass) .