So i was killing my boss egg and the literal second it died and showed in chat I died I didn't win anything except the 1 emerald key that everyone gets. The boss was frozen in the air and then everyone was complaining about server lag then the server reset with a server rollback. Then the server restarted and roll backed. When I came back online the boss was back at full health however it was a normal zombie in gold armor this time and I won nothing again except the default 5 dollars from killing a zombie and the rollback got rid of the emerald key that me and the rest of the server got. I took alot of screenshots hoping to try and prove this as well.