When I run the following code, the Matchmaker view is populated with me (local player) and my opponent (correct picture and friendly name). however, the "Send Game" button is disabled. I assume that recipients is set correctly. There are errors from loadPlayersForIdentifiers . GKMatchRequest *request = [[GKMatchRequest alloc] init]; request.minPlayers = 2; request.maxPlayers = 2; request.defaultNumberOfPlayers = 2; request.inviteMessage = @"Testing"; [GKPlayer loadPlayersForIdentifiers:@[ playerID ] withCompletionHandler:^(NSArray<GKPlayer *> *_Nullable players, NSError *_Nullable error) { if (error) { NSLog(@"Error loading player: %@", error); } else if (players.count > 0) { request.recipients = players; GKTurnBasedMatchmakerViewController *mmvc = [[GKTurnBasedMatchmakerViewController alloc] initWithMatchRequest:request]; mmvc.turnBasedMatchmakerDelegate = self; mmvc.showExistingMatches = NO; [self presentViewController:mmvc animated:YES completion:nil]; } }]; If I remove the opponent, and then re-add them manually, the "Send Game" button is enabled.