A friend of mine opened an Xbox multiplayer server on Nintendo Switch and was building a world with me and other friends. However, after updating Minecraft to 1.17.30, the buildings disappeared and parts of the land disappeared. The same was true for previous copies. What happened, Mojang?

(This picture was accessed from my iOS 15 device using Xbox Multiplayer on a friend's Nintendo Switch.)

+ Like the last photo, there were buildings and roads like that in the past.