Ruzude has told me he found a temporary solution to this, feel free to try, can't hurt right? "Gonna go into a little more detail this time. In my house there are two Xbox 360s, my brothers and mine. I bought the taken king legendary edition on his Xbox so he would be given the license which lets anyone on the Xbox play the game with the owner(me) needing to be signed in. Well when taken king launched it said my brother had to buy himself and he wasn't able to use the license. So I was able to get it working by signing into my account on his "licensed" Xbox and deleting the "taken king/suros/taken king weapons" files from his storage, starting up legendary edition and downloading them all again. I then stayed signed into my account but also signed into his account and started destiny with his controller so that it would sign him into destiny servers, it let me play the the taken king campaign from his account(it didn't before) so I turned off his Xbox completely and booted back up and only signed in as him and it worked"