Roof/ceiling planes cutting into dormer cheek walls

[AgChief]

Ok, the next thing odd happening with this model:

 

The cheek walls on the dormers are being cut at the roof plane locations.  I suspect it's a problem with the two roof planes coming together at the gambrel pitch transition points, and being compounded by two ceiling planes below the roof planes created to 1) provide a 12" space for insulation and air gap between the roof decking and insulation; 2) provide gussets at the roof pitch transition where the support studs have been removed to open up the rooms.

Dormer_cheek_wall_problem.plan