I am trying to connect to my son's world. I am playing on the Series X, and he is playing on the Nintendo Switch. 

His world shows up under the "Joinable Friends" browser. However whenever I try to join, it just hangs on the "Locating Server" portion of the "Generating World" window. I have tried waiting for a significant amount of time, and it never allows me to connect on my end. The strange thing is on his end, it does show my name, and it will even say I've disconnected when I hit cancel on my end. His world isn't even very big, it's only like 5MB right now.