Blender Importer not working correctly

[Raffael Bär]

Hello as described above, I want to view the ldraw database in blender, to model there. I have followed this guide for the add-on:

https://github.com/cuddlyogre/ImportLDraw

However, if I import a model from the ldraw parts library, parts only show half or arent even visible! I am on Blender Version 
3.1.2

I have included two images, where you can see the problems I have in Blender...
Image one is what I get when I import the car.ldr in the models folder,
   


the second picture is for part number 3005
   

regards
Raffael