Jackie D

So my game was completely unable to be played before because it wouldn't even let me into the realm, but I've found a slight solution. Someone on FB suggested logging out of my Microsoft account in the game, archiving the software (on the home screen of the switch hover on the game icon and click the minus button, manage software, archive software). Then once that's done click on the software as if you were going to open it to play and it prompts you to update the software. Once the software is updated I am able to log in and join my realm! Still have the issue of it always spawning me in at night and an occasional lag, but I was completely unable to play before so I think it has helped! Curious to see if this helps anyone else! 

I am having the same issue on my Nintendo Switch with my realm which has progressively become worse. It first started as the game not showing when I would interact with objects (ie- hit a block, open a gate, open a chest etc.), so I'd have to leave the realm then rejoin, then it would not let me join the realm or check the marketplace as it would be stuck forever loading, and now it won't even let me get beyond the Play button on the starting page. In order to escape the loading page I need to force quit and am given the message that 'the software closed because an error occurred.' I've done all suggested troubleshooting (ie- restart my switch, delete/reinstall software, check to make sure it's not the physical cartridge, check for system/software/controller updates, check for corrupted data, check internet connection) and nothing has helped. My friend who plays in the realm on Windows 10 has no issues.