This mod just uses a single texture for anime head, non animated ofc, so it has no interaction with Facial Animations, but if you have a retexture mod and facial animations it will apply the patch and therefore it will have anime eyes that do not fit your vanilla facial animation textures expanded or whatever mod

to fix this, find the folder of the mod and remove the textures for the patch for FA

3374615241\1.6\FA_Head