RuntimeMeshImportExport - Import and Export runtime created static meshes using Assimp library

Hi or anyone else who can help me :),

I’m new to your plugin and I’m trying out to recreate the import example. For my assignment, I have to import an .ifc. But I get this error (see picture)
It says Assertion Failed and Expression Failed: (ifcVector2(check.x, check.y)).squarelenght() < 1e-5.

It gives this already at the first node: Import Scene.

(I’m sorry that the pictures are attachments and not in the text, idk how to do that)