This is happening since I started using this, but I have always found a workaround to solve this. However, in this occasion there is no time for a workaround. I've created the igs from Catia, specifying "Export as solid/shells".
igs imported in Catia to check whether geometry has been exported correctlyImporting igs created from assemblyIGS imported right, but too many surface bodies, more than 1000
No matter how I import the igs, no right solids are created, either the circular elbows become toroids or the surfaces are not sewn and no solids are found. Would you have any clue about how to solve this?