A few days ago, i was playing in my survival world and i saved the game at a place far from my base.

Today i opened 1.16.5 to join servers.Then i opened 1.17 again so i can play my world.

So i went back to my base and.. saw a critical error of chunk loading.I saw my unfinished house being divided into 3 sections. And my dripstone farm also divided into 2 sections and one section is duplicated.My villager house is also duplicated. It also had invisible beds but i forgot to screenshot it. My sheep pen is broken and my chest with house armor is gone and they weren't duplicated or moved to another chunk.

I am pretty sure that this bug report is a duplicate.I attached pictures under the report. you can see that my bed is divided and duplicated water sources are not flowing.

Sorry that i didnt make the style fancy. I am so upset.

Edit(link to the world folder zip file:
https://drive.google.com/drive/folders/169P6JwQLkTrKGbABEzXGRBdhDi8mXUUR?usp=sharing
)