There are large chunks of missing land in my Minecraft realm. It starts on the regular dirt, goes all the way to bedrock, and then further to a blue screen below. The spots missing are perfectly cut out as though removed. I've checked the Nether and have also noticed that our pathways to other portals and such have been removed and I can no longer reach them or find them. I've asked our other realm members are we can't seem to figure out why this is happening. Our world has also moved around and random things have been moved or disappeared, such as a mountain by my house. A new mountain has appeared that has a pass through and that wasn't there previously. Is there a way to fix this?