I recently started a new server (for me and my friends only), and every once in a while the progress on the server just rolls back for no reason. It's a vanilla server, we only have one datapack (Multiplayer Sleep) and that's it. Why do rollbacks happen and how do we fix it? It's really annoying when you build something big and cool, and the next day it's all gone and you have to redo it all over again.
P.S. Rollbacks affect not only the blocks we place, but everything on the server (player data, entities etc)