AC12 wall intersection bug

[Anonymous]

Two circular walls intersection with a third wall causes strange behaviour in 3D. AC12 edu 2675 int.

[Anonymous]

Curious...
Does the circular wall have another skin that is not shown due to "partial structure display" being enabled? No coincident wall on another layer or story?
Snap

[Laszlo Nagy]

Strange.
I could reproduce this bug easily with AC13 too.

ArchiCAD cannot do a full circular Wall as one element so if breaks it up into two Walls. I think that fact that the two half-circle Walls join at the same point as the inner Wall has something to do with it.

Workaround: If you rotate the two Walls, let's say 90 degrees so the point they join does not coincide with where the third wall joins them, there will not be a problem.

I will report this to GS.