Thank you for reporting that, there is a bug when it comes to create plan views from Rhino geometry with this shape. We will notify you when this is solved.
In the mean time you can keep the different parts of the model separated instead of joining everything, or you can use VisualARQ walls which will work fine in plan views.
Is there any progress on this issue? I’m using such geometry to create thick profile. So it’s not ideal to separate it (I have separated parts already).
I’m working on the construction documentation of this project with VA and it’s going to be under construction by the end of this year. So it would be of great help if this problem can be fixed.
There are no news unfortunately and I don’t think this issue is going to be solved soon.
Could you explain in more detail why you don’t want to separate it? It seems uncomfortable to model with everything connected as a single closed polysurface.