First i see particles coming out of the spawners, but maybe thats because it’s ready to level up. Also a there is a floating chicken that is just endlessly floating and no zombie came with it. Minor issues but thought i would let you know.
These are Minecraft related issues.
I don’t recall ever seeing the chicken jockey issue on other servers/in single player. The chicken and the zombie don’t appear to have any gravity applied to them and just end up floating.