My party ran into an issue in the middle of killing the first Subject Alpha on Path 2 of Crucible of Eternity. At about 75% of his health, we got the prompt like we had defeated him. When we killed him, nothing happened; the doors didn’t open and we were unable to open. The marker for the objective was showing in an area beyond the door.
We started over and didn’t have any issues, maybe avoid pushing Alpha too close to the door?