Skins And Mobs Including Chests Has A Missing Body Parts

I updated minecraft to 1.21.2 then I saw my skin and the default minecraft skins have no legs. When I enter one of my world to play, I saw basically all the mobs has a missing body parts. Never happened like this before.. 

 

Observed results:

Minecraft Skins And Mobs Including Chests Have Some Missing Body Parts 

 

Expected results:

The Skins And Mobs Should Has No Any Missing Body Parts