A few players who have been playing on my Realm for the past couple days suddenly can not join it anymore. They get stuck on the "Building Terrain" part of loading, but it never loads for them specifically. I don't know if it's a replicatable bug, though I have not seen anyone report it recently and I've seen nobody figure out a fix for it on the older ones. They are both on PC while I am on Xbox One, though it shouldn't matter, as the Realm is not hosted by me.

Like I said, they had been joining and playing normally up until a few hours ago, now it won't let them join. They are still able to create a new world on their own. There were others besides me in the server, but it was not full.