I had the same thing happen to me. I got a legendary engram also. Turned it in and got a blue/rare gauntlet. Highway robbery i tell you. I would have even settled for a legendary item for another class. At least i'd have it when I made my other classes and needed it. Stupid engram guy has alzheimers I swear. Next thing he'll be saying in a Blill Clinton voice " I did not have sex with....er I mean give you the wrong item for your engram."