so basically i cant use themisto as you can see on my titan only i tried my warlock and it works which is good but when i go to titan it says like i have it equipped which im so confused im basically stuck and cant use it and it looks so good in preview :( second screenshot http://imgur.com/R8wxDMD as you can see I have space and it still wont let me use it. heres a video https://youtu.be/EYhUf7lerqI dont know if this helps to much though sorry.