this is a byproduct of how MarshmellowPB does the bones and limits.
it only works for assets of a single size, no sliders or changes without a buttload of custom animations/parameters to fix it.
Witchofasia You need to create a texture that excludes the eye sockets. You can do this in Blender, or get an "emission" texture, which makes the whites of the eyes glow like in anime.