this bug is also in windows 10 in version 1.16.20
The same thing happens to me in this new version with the Faithful texture pack 😞
Me sucede lo mismo con la textura Faithful en la versión 1.16.20, pero la textura de ambos mobs se ve mal y este error en las texturas no me pasaba en la versión 1.16.10
it's a problem with the texture pack you use.
It happens because the textures you use are for version 1.16.10 and they need to be updated to version 1.16.20