I'm having some problems when creating 3d pdfs. Some of the elements apear in different levels on the pdf from the original ones in ABD. I'm attaching a sample with the original dgn and the resulting pdf.
Help please
3DPDF.dgn
Unfortunately I have not been able to duplicate your issue with the .dgn supplied. The 3DPDF.dgn file has just two levels and your .pdf has three. Attached is my generated .pdf file. When I turn off the levels in the .pdf file I generated, the appropriate geometry turns off as it does in the .dgn file