After ending the story, when you talk to Cain and Karshun, you enter the Astral Plane. I was playing in group with a friend. When we killed Cultist to protect Karshun she was able to proceed the mission while instead i was stuck on the astral plane and couldn’t do anything. I try to unstuck but i respawned in the same location. I tried to restart the game but no avail. Don’t ask me why but i tried to change the language game and for some reason when it restarted i managed to proceed the mission.
Playing on PC