Crashing Chaos temple / Sanctum

I cant finish a single sanctum run or chaos temple run due to crashing. The game randomly just close without any warning.
In sanctum happened a few times at boss nr 2
In chaos temple happening randomly either in boss fights or while room clears.

I have the same issue, I just run a 7 Trial Ultimatum and I got dced out when I was figthing the 7th Trial boss.

Same for me. The game crashes randomly in the Temple of Chaos, and as a result, we lose the map for the temple entrance, the reward loot, and the progress in the temple. It's very frustrating and discouraging.