Problem with curved surfaces, when exporting Revit to IFC

[pg_demetriades]

Hello, when I Export revit to ifc, curved surfaces are not smooth. 

[RLY_15]

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Curved-Model-Eleme...

Can you confirm which IFC format you're exporting to?

[pg_demetriades]

Hello,

Thanks for the quick response. I am using ifc version 4 - Revit 2026