hmm weird. Have you tried restarting it? It's working for me. Is anything coming up on the top left of the screen when you press play? It's Asynchronous multiplayer so there's hundreds of people to battle against so that's not the problem cus the matchmaking doesn't work like that.
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Yeah i understand how the match making works and thought it wouldn't matter who's online or not since it's asynchronous. Man I'm sorry I've brought this to your plate but all my buddies are reporting the same issue (I can have some others on my discord server try) I'll update this as we try! Thanks bro! I'll won't overload you with ?'s