When I open the terminal then there is not my Skin, but a Wither Skeleton
and when I have it open for a longer time my Minecraft crashes with
The game crashed whilst updating screen events Error: java.lang.ClassCastException: net.minecraft.entity.monster.EntityWitherSkeleton cannot be cast to net.minecraft.entity.player.EntityPlayer Exit Code: -1
Crashlog:
crash-2021-10-31_12.58.45-client.txt
Latest:
latest.log

Same problem.
Voteup.
Seems to be a bug from a hidden easter egg for halloween.

Epic failed.

it was indeed a bug with the Halloween event