Yesterday I was playing on my realm with three other people. We all got kicked at once and after struggling to rejoin, when we finally did the world was as it had been about 10 or 20 minutes prior. This happened again later in the afternoon, however no one was online. I left the game and when I came back later the world had been setback again. I am the owner of this realm so I know that it wasn't reset to a backup.

This happened before in probably June or July but it was about an hour of progress setback. The instance in July happened in the same manner that the second time yesterday happened; no one was on and when I went back online my progress hadn't been saved.

Note that I am using fabric loader with optifabric, minihud, and litematica installed but other people that are playing vanilla had the same issue at the same time yesterday