Hello Everyone,
We have examined the problematic file, and found the source of the problem.
Turns out the frames and panels were actually modelled from Profiled Walls/Beams/Columns. The weird 3D extensions were caused by Profiled Walls joining at a 179.3° angle. The connection couldn't be properly calculated for that shape, and it resulted in this.
Using slightly curved Walls (so they would meet at 180.0°), or a slightly bigger angle should solve this issue. Alternatively, You can just make the walls run into the column, and not intersect with each other (as it would work with Regular Curtain Walls most of the times).
Regards,
Daniel Alexander Kovacs
Professional Services Consultant
GRAPHISOFT
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