This has also been raised as a bug in the realms bug list
Same issue. When second player tries to join, you get to select a player, then you see the second players loading progress screen appear (showing zero progress) then the split screen shuts down and only player one remains, which works as normal.
Throughout it all, player one continues to play as normal, just a second player cannot successfully join.
What kind of testing is being done before a release? It looks like not much if such a serious fault is not prevented?
Same issue. Did hard reboot of the switch that did not help. At startup it crashes almost immediately saying “a software error occurred”
Same issue here on Swtich, very frustrating. I don’t see point in continuing Realms subscription of I can’t play it in split screen.
See REALMS-12523