Echoes of the Past Companiom Quest Bug!!!!!

Started the companion quest for Bellara; after starting the quest and going through the discussion you have to follow her into a room she opens. She asks you to get 2 keys while she keeps artifact stabilized. The problem and bug is that 1 of the keys is already in place but is not counted as 1. You can't take off to put back on cause once they are placed they get locked. Since you have to find a key that can't be found you end up stuck in a non completeable mission. Plz fix thos issue or let me know how to get around it being I would really like to finish her storyline & get remaining achievements please and thanks a ton!!!