Shot in the dark

[JacksonD07]

I know it's a long shot, but does anyone know of a mod that causes bad shadows around the head/neck? I realize y'all don't know which mods I have, just hoping someone recognizes this goofy shadowing from a mod they once had installed. I mean, once I figure it out, I'll know the answer, so maybe someone else already does Thanks and be well!  

bad shadows

edit: I should point out, whatever hair I use, vanilla, replacer or ccxl, doesn't have an affect on the shadow. It's persistent and unrelated to hairs.