I try to load a DWF file produced with PDMS and all the cylinders are missing !
It is ok for rectangular objects.
Since pipes and many fittings are made out of cylibders the result is quite disapointing...
When I open the same file with "Autodesk Design Review", there is nothing missing !!!
Does anyone has a clue on why this happens ???
This is a known issue that we should have fixed in our 2011 release. As a workaround in the time being, you can disable parametric primitives. This setting can be found under Global Options -> Model -> Performance -> Create Parametric Primitives.