Hi Chief Friends.   I've been an on and off chief user over the years, but now I'm all in!      Being so appreciative of those who take time to share their knowledge and insight into Chief, I want to give back as I move along in my exploration..    D5 or other third party render engines don't seem to read the UV mapping of Chief doors.  The doors export as one color/material layer, and you can't assign the rails separate from the stiles.    I'm working on a new door