Scaling Issues exporting IFC files

I’m hoping someone here can help. I’ve downloaded and installed BlenderBim. Created a model in Blender. Started a new IFC project. Gone through all my objects and have given them an IFC classification. Saved the file and exported it as IFCv4. I open the file in any other program that can open an IFC file and all of the scalings are lost, extrusions are kept, but the rest is just the standard box mesh I started with. I should point out I create and finish the model before I create the IFC Project and before I give it a class. Once this is done I don’t change it.

Does anyone know what I’m doing wrong? What I’m missing? I’ve googled the sh^t out of the issue but can’t seem to find a solution that works for me.