Missing objects when exporting to IFC

[marcus]

Hi,

When exporting from Revit 2019 some objects wont show in the IFC model.

The objects are of the same type, phase and material etc, basically they are just copied from each other and the only thing that is different is the shape. Ive tried going through the export settings with no luck..

Please see pictures

from REVIT

Imported IFC in NAVISWORKS

As i said, the floor elements that are visible in the IFC is the exact same type as the ones that are not showing..

Element that wont show in IFC and its properties

Element that WILL show in IFC and its properties

Also, parts of the bottomslab is not showing either. (and the slab is shaped out of only 1 object so why only parts of it shows makes no sense to me.)

What is going on ? Any help appreciated.

[Amr.AbdelHai]

R button ==> Export ==> Options ==> IFC options 

and check the below options