How can I fix an error w/ 3d?

[Anonymous]

When I go to view my model in 3D i am getting the error "Opposite edge list direction in pgon 133." How can I fix this?

[Ingolf]

Hello LizFortune!

Pgon means Polygon. You have got an Object that is not behaving well in your ArchiCAD File. My advice: Make a copy of your File by Choosing File - Save As. Then use the Copy and experiment a little. Remove Objects one at a time. Go to 3D every time. In the end you probably will come to a point where you will not see the Warning Message in 3D. Then you know whitch Object was the Culprit.