I also have this issue happen when ever I leave the render distance and return. I found open them when not loaded cause the crash if items were in them.
had the same issue on single player world on PC win 10 where I would break the nether rack that was on fire not putting out the flames, and I would get burned walking over the block where it was.
This is normal, it always wipes worlds when coming from Beta, it suggested to save back up of your worlds before going into beta.
Since the 1.16.1 version update on bedrock there have been multi bugs one major one is the increase in lag on both single player and realms, I am not sure as to what is the cause of it but since the 1.16.1 update Mobs have not been working correctly. A few people on single world and realms have notice being hit by random damage with no mobs around, dying to a mob that was not even in view range, and attacking mobs that appear to be invincible and not taking damage... this included passive mobs like the Invincible Llama >.> Reloading Minecraft does help but for a limited amount of time like 30 minutes before it accrues again. Over all what ever is causing this issue is greatly taking from the enjoyment of playing the game.
Affected Version- Win 10 PC
Platform- Single worlds/realms (setting was on HARD)
Reproduce- any world generation 1.16.1
Set Time to accrue - unknown, 30 Mins +
Locations- Infinite locations.
Affected- All entities Mobs/Passive Mobs.
P.S- This update 1.16.1 will forever be known as the Haunted Update...
we had this issue I had to uninstall and reinstall MC cause it wasn't updating automatically. We also had the same issue with the realm not updating right away as well and having to load it multiple times. But its basically saying something not up to date on the 1.16.1 version.
Also having the same issue on realm, but we even gone out 9000 blocks away and the villagers will not link to beds, work stations. they will not sleep to see if it was just that one villager, but it was all the villages in the realm are affected now. We are not sure how it happened but when it was triggered one of the player had broken all the village beds and two of us were in separate areas, one had a village farm they were at and I was between the two on map working on a separate build as well. I am not sure if that would help replicate it.
Were on the Bedrock 1.14.3 Realm.
We have it happening on our SMP realm all the time to the point we are all carrying Fire Resist potions just to travel from over world to nether via the HUB systems. It happening even to some players in flight when chunks are slow loading and flying through the walk ways into the lava under pathways, and upon loading into the nether from the over world into calculated nether HUB portals over lava lakes with safe walk ways over the pools.