PleaseFixThis2

I just tried something slightly different. Instead of going back to the paintings and reloading, I went far away, reloaded the world, then went back to the paintings and as soon I rendered the paintings, they fell off the wall.

I’m having this issue when I reload the world.
STEPS TO REPRODUCE:
1. Create a new world. Or load one.
2. Place at least 30 paintings withing a 25 block radius(numbers arent exact).
3. Go far away to completely unload the chunks(you might want to teleport). Wait about 10 seconds.
4. Then go back to the paintings(Teleport, fly or get back somehow) and reload the world(Exit and join back).
5. Some of the paintings should have fallen off the wall.
This might take a couple tries to reproduce. This issue happens on new worlds, old worlds, with and without resouce packs and addons. I only started to notice it recently. like within the last 1 or 2 updates. I've included 3 screenshots showing before and after reloading, and the chunk borders.

I just had this issue 4 times on my world. Its not a realm, but it happened to 2 of my friends recently. Both are on PC( My world is hosted on pc, Windows 10. MC Version 1.21.94.1) and it happened twice for both of them within a 1 week. The world grew about 300MB before this incedent, but it has happened a couple times in the past when the world was less than 600MB(the world is now over 900MB).. It happened to me once a long time ago, but everytime its ever happened, we always quit the world right away and when we join back, everything is fine… My two friends also dont have the best interenet connection if that means anything.