I got into contact with the guys at GRAPHISOFT and they called my attention to something.
I attach 2 screenshots.
If I use AC20 to import a SketchUp file, the resulting GDL Object will have the parameters you see on the first screenshot.
However, the GDL Objects you have problems with have the parameters you see on the second screenshot.
These parameter are very different so their conclusion is that these GDL Objects were not created by importing SketchUp files.
Is it possible they were created or brought into ARCHICAD in some other way?
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