Trial of the Sehkemas - Crash to desktop when entering Rattlecage chamber

Game crashes when entering the last chamber of the trial, before fighting the boss, i've tried updating drivers and pc, and using vulkan and DX12 but the game keeps crashing to desktop as soon as i step into the boss arena.

Anyone having the issue or found a workaround? i'm using skeleton and sniper minions.

Fixxed after validating game files on steam. 1 File needed repair.