I have both PC and Xbox details registered on my waypoint for the halo insider. I installed the infinite flight on my xbox and it run terribly, felt like 30fps even on performance mode. So I tried to install it on my PC instead, got the product install key from my waypoint and installed the game. But whenever I launch the game and sign in to my xbox account (same one) it just pops up with an error saying I’m not authorised to play infinite? Can I not use PC instead? Is there anything I can do?