For the past few days I’ve went to open up different worlds and it says “Updating pack 1 of 1”. After it’s done I try to open the world again and it quickly flashes “Syncing user data” and never opens the world up. 

When I quit and open Minecraft again it does the same thing. My current way around this is going into my wife’s realm, backing out of it, and only then will it allow me to open up my worlds. Even then, the image of where I left the realm is the image used for the last world that was opened up.