Some items like banner or torches make the 3d layer on the head not show up and make me bald.

With nothing

With banner

With torch

Other items seem to work fine (have not tested all)

Ah the issue where player heads, where the 3d layers do poke through. Gonna limit it to that.

It hides the head layer when a block is worn because of pumpkins. But I guess it filters a bit too much.