This quest is still bugged for me. I remember it being bugged in the cave portion on my first character and I subsequently stopped playing him because I could progress no further. Now I am on my 2nd character and this mission has me stuck on the “Search the area for survivors” part of the mission, sorta near the beginning of the area with all the mobs in it.
Quite frankly…this is frustrating. I’ve had two different characters now that have gotten stuck on this one story mission…and nobody else on my friends list seems to be having this problem.