Noticed this while trying to knock out the Eris bounties on my fresh warlock. It appears that for the Eris/Xur Bounty, after completing all of the steps and doing the "Ritual of Sacrifice" mission, the bounty will incorrectly direct the player to go to the tower instead of pointing to whichever location Xur is actually located. A trivial bug no doubt, but it might as well be mentioned and added to a bug list. Attached is a few screenshots that show what is going on. http://imgur.com/a/Jo9Du