Friendly Nameplates are not Skinned
 

As you can see in the Screen, the friendly Nameplates are not skinned like usual.
The Screen was taken on a fresh installment of this UI, nbo other Addons where used.

That is intended behavior within instances. The friendly nameplates there are forbidden and can't be touched.

For that reason I decided to set the cvar that hides friendly nameplates completely.

But now that I think of it I could have just set that cvar when entering an instance.

Ahh okay thanks, does anyone know why Blizz is doing this?

I don't know, exactly, but I understand it has something to do with an exploit. Of course, I could very well be wrong. :o

Not an exploit, just clever use of nameplates (and the chat bubble frames as well at some point)

https://www.youtube.com/watch?v=jGMDYqHokoA
https://www.youtube.com/watch?v=QnCvyRb4t0Y

Notice the colored circles and lines over players connecting to nameplates. It was during that patch friendly nameplates were completely locked down.