Put the summary of the bug you're having here

What I expected to happen was...:
My Realms world update to 1.16 without any problems

What actually happened was...:
I went onto my realms world, went into the nether, and explored then realms kicked me off the world. I then went back onto realms, and back in the nether and you guessed it! it kicked me off. every time it kicked me off, it rewinded time to the last backup.
I then went on the realm and i didnt go into the nether. i just bought some enchants and a diamond hoe from my villagers, enchanted my hoe, then REALMS KICKED ME OFF.

Steps to Reproduce:
1. Go on a realms world.