I'm using the Lobby system to form groups before matchmaking together, and I've got it all working except, I'd like to display the name of the player that has invited someone to the Lobby - currently I only have access to the 'PFEntityKey invitingEntity', so I can get the ID from that, which is the title player ID, but I can't figure out how to get the username from this to display.
I've tried a couple of things suggested elsewhere: GetProfile, but it gives an authorisation error, I've tried adding an object to the title player which contains the username but, and get it with GetObject and get an authorisation error again.
Is there really no easy way to get a players username from the entity key? I feel I have to be missing something because it's such a basic thing