I recently posted a thread regarding V3's Mats not connecting the bump node in P5. Thought that maybe the material room was having an issue with the Mat, I was wondering why I hadn't noticed it before. I was messing around tonight and found that the Highlight/Contour Mats work fine, but the standard HiRes do not.
I also noticed that the Koz Long Hair Mats do not change the hair color, even though a quick look at the .pz2 in a text editor doesn't reveal anything suspicious.
Now I know my memory is getting pretty shabby, but I could have sworn that these Mats had worked correctly at one point in time, but I could be mistaken.

It's getting late, or I'd investigate further. Maybe someone could verify this for me?
Anyone else have such an issue?

My Long Hair MATs change the colour. Make certain you have the hair selected before applying the MAT. Also, make certain you're applying the proper MAT; there are different MATs for the conforming figure and hair prop versions, and they aren't compatible.

I did't see other MATs , I'll check that out. I thought I had the right path from the .pz2, but I can't be sure. I applied the texures manually and the worked, probably just have the wrong MAT.