Well, I have this problem too. My dads account changed over no problem, but mine is a no go! I can log into destiny on the PS3 no problem at all. Just not the ps4! We are sharing the plus from my dads account. I even made a new account which works fine. I do not like being pushed into spending hundreds of pounds to continue playing one game as it is, let alone the insult of not being able to use the frickin thing! Even worse! Im not a happy chappie! Seems like a waste of money, time, effort. Rant over! I give up, I'm off down the pub!