Another Hair issue, the smoothing groups or tangents appear broken

So i’ve been fixing lots of issues with the hair, lots of hidden settings and commands to get the most out of it and now im facing with another issue, when viewing in Lighting Only mode the peach fuzz groom hair looks like it has smoothing group/ tangent problems, how do i fix this?
Tried plugging in the tangent from the hair atributes expression node but it does nothing.