Everything worked fine on my DH, but when I swapped to my hunter, the quest [A Worthy Ally: Loamm Niffen] got bugged and never counted the rep gained. Now I am lvl 5 with only 325/1500 rep.
Also I can no longer get to the Buried Vault. I got to the point where I was about to accept Terrestrial Tunneling the game crashed and when I got back in I was back at the main hub.
I can no longer talk to Rupert and get over there. Now I cant finish the story line at all.