Export to IFC moves some objects

Hi,

I have a model that looks fine in BricsCAD but when exported to IFC, some object gets rotated, what may cause this?

Under is a screenshot from within BricsCAD, you se the building with a section cutting it so that the inside is visible, everything is where it should be. On the left you can see a pie in blue and black that some disiplines has used to mark the world origin.

I export this to IFC and open the IFC-file in Solibri, the building shell has then been moved in all axis.

Any ideas?