Greetings, battle brothers!

My problem is that i have a quite specific "inquisitor martyr has stopped working"  crash on the last mission of the " drukhari menace" questline TERRA INCOGNITA. on the last miion of the questline where you have to destroy the drukhari webgate and fight the female boss and her minions the game ALWAYS reproduceably crashes a few rooms after that near the end of the stage. its the bit where there is a chest in a circular room and the room is stuffed with enemies. after the door opens and you enter that room, firing at any enemy freezes the game like mentioned above. i also just tried a randomly generated purge mission tha takes place in this chunk of the stage and there it crashes aswell.

things i have tried on my own already:

- verified game files: there were no files downloaded / replaced

- installed all the stuff from the installutils folder

- set resolution to 1980x1020  (my native) and 1280x720

- set the game gfx setting all to the very max

- set all the game gfx settings to the very minimum

- set frame limit to 30, 60, no limit 

- set display mode to windowed, borderless fullscreen, fullscreen

- set the camera offset to 0,50,100

- zoomed al the way out and close up

- set corpses to 0 and 100

- set sync to gpu on/off

- used different camera angels everytime i started the mission

- linked my account and enabled crash reports then did mission a few times more , the name linked my email with is rapmaster-b

in my nvidia driver menu i set the gfx card to prefered device, maximum performance and my pcs energy plan is set to maximum performance aswell

before i occasionally had random crashes here and there but not one i can make appear again and again and can say " game will crash now!" and it does.

in case system specs are required, this is it:

AMD Ryzen 3 2200G 3.5ghz

16GB RAM

NVIDIA Geforce GTX 770 2GB (driver 441.41)

512GB SSD

windows is up to date

i hope i lsited everything there is to know and i can get any advice/ help on what to do because its so frustrating when missions crash near the end all the time when you take 20-30 minutes to get to that point and have to repeat everytime.

thanks in adcvance for any help! the emperor protects!