Rhino Topography has gone strange

Hey :slight_smile:

I am currently building a rhino topography, which is a closed polysurface. The surface seems to have changed to having a secondary cover over it, which I am confused by. Photo is attached.

Best,
Daniel

Hi Daniel -

Iā€™m afraid that neither the description nor the image give me much information about what is happening here. Can you post a 3dm file?
-wim