Steps to Reproduce

• Join Realm on Nintendo Switch
• Go through End Portal to End Dimension
• Save and exit game while in End Dimension
• From Minecraft Home Screen, select same Realm to join
• Realm starts to load
• Loading gets stuck on "Generating World Loading Resources" screen

After many attempts to join Realm over several days, always gets stuck, never finished loading. Realm owner can still join Realm in Overworld. Not sure what would happen if Realm owner were to go into the End Dimension. 

Only steps I know of to resolve

• Join Realm via iOS
• Player spawns at last save
• Die in The End or travel to the Overworld
• Save game
• Join Realm via Switch

Steps I tried that did not resolve

• Format Switch, clean install of Minecraft v1.19.73 with no save data
• Join from a different Nintendo Switch