Repeated CTD on Admiral´s Dreadnaught

I play a new seasonal character, and had no problems until I reached the Admiral´s Dreadnaught. Whenever I run towards the boss I get a CTD at roughly the same position, somewhere soon before I would see the boss. I tried several times, I always get the crash. I updated my graphics drivers, I deleted the le_graphicsmanager.ini file, I checked the files via steam. I tried with an old non-seasonal character and got the same crash at the same position.