As the topic asks "Is there such a thing as child faces?", lemme explain in greater detail... Yesterday I uploaded a mesh to the Beta grid to test if the faces were assigned to the correct materials which they were making the mesh in question looking like it's suppose to with the textures selected. However when I went to test the behaviour of the scripts that I was planning to add to it I found a odd behaviour in one of the faces. If I changed face A to glow, face B would also glow (with a slight delay), however if I disabled glow on face B, face A would remain on glow, showing a kind of parent-child relation in which the child emulates the parent but not the other way around. This got me by surprise not only because the original blender materials were different but because I never was aware that such behaviour could be possible within SL. Could this be a beta feature within beta grid or my blender project had some kind of topology that I wasn't aware of that I might have done by accident?