Put the summary of the bug you're having here

What I expected to happen was...:
Opening Minecraft and all of my progress from the night before (2-3 hours of resource gathering and terraforming) being saved.

What actually happened was...:
I had to re-terraform the same hill THREE times yesterday. By the third time, I was actively disconnecting and reconnecting to Realms to make sure it saved my progress - and it was. When I was done for the night, I closed out of everything and turned off my computer. This morning, imagine my surprise when I jump back into the game, and the hill is BACK. None of my progress was saved from last night.

Steps to Reproduce:
1. Shutting off the game and closing out of everything.
2. Coming back to play later, and everything I had worked on is undone. No saved progress.
3. This is a major server issue. I have had my progress undone four times in the last 24 hours.