it could be my own fault, I have no idea. I had a few issues with minecraft recently, I degraded to beta 1.0 when i started just for the nostalgia, then went through a few versions on the same map/world.

When I upgraded back to play on my regular world i first couldn't open the world at all, i did a fresh install and that didnt work either, i got it working when i went into my recycle bin and restored everything.

So I have a map wall, and i did some progress so I wanted to update it, now it doesn't render correctly at all, the blocks are displaced and everything.

I don't know how you would do this again, and just for whoever responds, it could be that my files are weird but i dont really wanna reinstall again seeing as i dont wanna lose my world.

If you need more info or want me to test something to narrow the issue I am willing to try most things to help fix