I got to the 6th step on the quest which is to talk to Banshee, I went to talk to him and it would only load his standard page where he sells bounties. I decided to try and abandon the quest as I thought it was bugged, when I acquired the quest again it set me back to collect the strange key from Xur. Since I have already used the strange key I cannot proceed with the quest, is there any way around this problem?