SW2015. I have an assembly that has a cut on it. I changed to the color of that surface and everything looks good. However, as soon as I regen or reopen the part or do some other command the color disappears. When I select the surface and select Appearance I can see the color is there in the property manager. If I accept it the color comes back, but as soon as I regen it it disappears again. What am I doing wrong?