Imported CAD help

Hello, I am having a small issue with importing datasmith dwg from AutoCAD to unreal engine. I am importing truss models from the Chauvet truss website.

I have 3/6 so far that are proportionally accurate when imported, although when I import the other 3, the models are drastically bigger than intended or missing some parts of the model mesh.

Do you have a sample you could share with us?