My brother and I want to play this game multiplayer on Switch. We both have the game and we’ve got each other added as friends on Switch. My brother lives in Korea and I live in England. From the Switch home menu, looking at the friends list, we can see when each other is in the game.
However, when in the game, we can’t see each other’s hosted worlds at all and so we can’t play together. From the title menu, we click Play, then Online Play, select character, Join Game, Refresh, and then no games come up for both of us when the other is in a world we created through Online Play -> Start Game. We both have Host Settings set as Visible to Other Players.