The Everstrange Reluctantly Widening Door

[cadfaelford967442]

I have a strange problem here. My door family has “constraints not satisfied” if you try to set it to a width 10 inches larger than its current parameter value. However, if you inch your way up to the size, it works just fine (example: if the door starts at 36”, and you want 46”, you can’t set it to 46” but have to set it at 40”, 44”, and then 46” or it will fail). The issue persists in both directions and defies my understanding of both REVIT and programming. Has anyone encountered this before? What is going on here?

My thanks to anyone who would be able to shine a light on this matter. I've attached the trouble file below, a REVIT family file made in version 2013.