Multiple crashes occuring in different places after patch and lag when entering new places

Hey,

I have been receiving multiple crashes after the latest 0.1.0e patch. Game just freezes for a few seconds and then shuts down Steam as well (??). Happening in different places, while browsing stash, when entering new places, when alt tabbing etc.

Also the patch introduced massive lag when I enter new place via waypoint and it takes a few seconds for enemies to render for me. This is a new bug that didn't occur before the patch.

i7 6700K
GTX1070
16GB(2x8GB) DDR4 2666 MHz

Game running on Windowed Fullscreen with NIS, dynamic resolution disabled
Mediumn
Trilinear Filtering
Shadows
low
Low
Low
Low