Chunks are missing and you can fall out of the world?

Basically in every world I make or join (not a server I mean a friends world) an entire chunk of ground is missing. And you can just hop right in this giant square hole. So it's the size of a chunk I think, you can see the ores and it's not like a loading chunk because sometimes animals can walk on it and glitch through, but there's nothing here. You can jump in and it says that you fell out of the world, which I don't even think is possible in the over world in survival mode. It's just In this update and it's kind of an annoying bug but I haven't seen anyone else report this problem?