[Gamebreaking bug] Game crashes at end of TAU every time

[Spartangy]

Same issue, I got a few crashes before too, particularly when you first enter that site where you have to collect the three items, but this is the first one I can't progress through.

Tried pretty much everything, minimal settings, reducing my FPS to 60 from 144, no dice. Also changed to the beta build (788777), restarted Steam, yeah.

Win 10, i7 4790k, GTX 770 (355.28 drivers), 8 GB RAM.