Also, there is a fade map in that same folder, black with holes for the eyes, nostrils, and mouth. Except there is an error, and there are a couple white pixels on the cheek in that map. I never noticed it before, but all g2f diffuse face maps have a blemish where those white pixels are on the face_fade image. I tried editing that image too, but nothing changes.
I am loading 4k studio facial images -front facing with neutral expression and excellent lighting - of women.
After analyzing, regardless of the quality of the photo, the resulting texture has a discoloration in the form of a "goatee" shape, as well as a brown shadow under the chin, and excessive pink highlights around the cheeks and nose. This is precisely consistent with the tex.face.jpg image found in program files/facegen/artist home 2/data/artist/daz/genesis2f/
I then export to map textures using the base genesis 2 diffuse maps without any modifications. The final product always has the beard discoloration, pink highlights, and the pixelation on the eyes, nose, lips, and cheek from the bad fad_face file in that same genesis2f folder where i found tex_face.