ShapeDiver Geometry mirrored, showing up in the opposite direction

I upload a scene for my model, but the walls and ceiling are facing a different direction.
Please see the photos below.

Any ideas what makes this happen?
Thanks very much!

Look on planes, more here:

It is very likely that unsafe operations are performed in the definition. Operations such as joining and exploding breps, hardcoding list indices, assuming default values for planes and other parameters… can have different results in different versions of Rhino or even just different machines.

I can have a look at your definition or a minimal version of it if you can create one.