Probably interactive. By 'shader' do you mean, material? Maya, error messages, does that happen? Seriously though, I don't think I could move a polygon in Maya without getting an error message (not literally, but Maya does love to give error messages).
# Warning: XGen(1): No bound geometry for [Facial_fur1_base] # Is the exact error. I tried changing the mesh shader to a simple Lambert. But that didn't change anything.
Yes, it's interactive, and if you're talking about materials, I'm using Vrayfastsss2mtl4 on the mesh that the fur is attached to. Although I keep the mesh hidden since it's only there for the fur. As for errors, I do keep getting "no bound geometry for facial fur" .etc.. even when the mesh isn't hidden. I wasn't able to…