easy rendering for Rhino in Windows
Can you send me the model? This is very interesting, I cannot get it to happen here, but I have some ideas of what it might be.
Are you running Rhino 4 or Rhino 5?
You can post it here, or email it to firstname.lastname@example.org
Here's the file. I'm using Rhino4.
I see the problem and will talk to John about it.
The problem seems to be from Blocks which are mirrored. This will creates a negative transformation. You can copy and rotate these blocks into place and will get good results. I know this is a workaround and not a final solution.