Lost Progress

At random times, the realm I own will kick all players from the server and reset the progression to the latest save in the cloud, which can set the realm back up to half an hour. This has happened 3 times, once while I was on by myself, and twice while playing with other people. There are 2 factors that I believe are the cause of this: 1. The world is over 100MB. 2. Multiplayer causing this glitch to be more frequent.