Realm kicks all players out and reverts back to a much older save

Every time a large scale village is approached by any player, the game kicks all players out and reverts to a much older save, destroying hours of gameplay. Additionally, villagers are despawning rapidly, including name tagged villagers, and max level villagers. For example, multiple of my named, max level villagers have disappeared, bringing my village with a population of 50+ down to a measly population of 5. This has ruined hours upon hours of gameplay and resources. Please consider fixing this ASAP