Im getting reflection of his skin/head on the front of the coif. it moves with camera angle.  goes away when I turn off bump and displacement. anybody know what's going on with this?

PP2010, IDL on, using BB evirosphere, no lights are on 

any help with this would be great

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740