I was on a realm with 3 of my friends. Me and one other friend were disconnected at the same time while my other friend saw we both left the game at the same time. We got on another game shortly after that. Maybe 2 hours after the disconnect I saw that my realm had been reset around 1 and half hours back from when we all previously logged off to get on another game. I tried to get our progress back by resetting to our last logged out version, but when I did, it took me to the same thing I first saw when I had logged back in.