Is this because their servers are so overloaded? Every time I win a battle, the screen says "Loading" and never changes. It's been that way since early yesterday. If I cancel out, I'm given a message that my match result wasn't reported. If I try to login to WBPlay, I get an error and I'm told my login is invalid, which is strange since I've already unlocked Ninja Mine Cage and Farmer Jax, so it seems to at least be working on the console end... Sort of?

Anyone else having these problems or know how to fix them? I've seen some say reinstall, but I'm really hesitant to risk losing my progress.