(The game version is 1.18) Have been playing on a multiplayer with friends for some time now. Realized lately the fps around the jungle has been slowly dropping. Decided to do some investigation and found swarms of endermen carrying blocks, stuck on vines, stacked on top of each other and not moving. Tried searching up any current issues or if it was patched in 1.18.1 but couldn't find out. Unsure on how to test this further but when giving the endermen a glowing effect it reads 153 entities. After a /kill all lag disappeared and my frames returned to normal. I would also like to add I am playing on a fabric server with a few client side mods installed. Not sure if they could of caused this but yeah.