I found a seed on the internet, created the world with the experiments, and started playing. I noticed right away something was off. First of all, It was in the new meadows biome. Various blocks were getting replaced with azure bluets and grass. There were trees'  trunks were replaced, a villagers entire floor of his/her house, tilled dirt from under wheat, and the wheat was still there, but when a block updated, in fell. The block the bell was generated on was grass! There were fences from leather workers, you name it.