Karl,
Okay, it's a glitch.
I had tried the show in 3d radio button too, results were ridiculous.
I also noticed the other problem you mentioned and it's why my morph foam window surrounds are up a few stories and shown in plan in 2d line work...ugh.
The plaster/stucco edge in plan as it turns into the frame is not in the correct position / location. Guess I'll have to let this one go until graphisoft fixes this.
GRAPHISOFT!!