ifc

When I open a IFC file into the model loader it shows like this:

and it should look like this:

What can I do to let it load correctly?

File which is being refactored
All files that belong to the IfcGeometryConverter.

Functions
With the update to VS2019 the throw keyword (throw(...)) right after the specification of the input parameters of a function should be replaced with "noexcept(false)".

Some files of the IfcGeometryConverter already got changed accordingly, but there are still various files where this is left