after import from iges some meshes are double

 From:  crydee
5216.1 
Hi Michael,

I have a strange problem. If I import some IGES files I get some meshes doubled. They are at the exact same position. If I import those files into antother program the whole model is fine. Do you have any idea?

Thanks in advance.
Ciao
crydee

EDITED: 28 Jun 2012 by CRYDEE