Username is appearing as random letters & numbers

[leBuHo]

So I've been trying to fix this issue for a while now.

When I'm listening to one of my playlists, at the top where it says what playlist is playing it says "playlist by: " and then a bunch of random letters and numbers.

I've connected my account to Facebook, I've changed my username, I've reset my settings over and over but I still have no luck.

Anyone know how to fix?...