Michael,

I know I mentioned this in the email but I'll repeat for the good of the other forum users:

Alibre has its own import issues. I half expected it to not import the file incorrectly, regardless of format. That is entirely separate though from the issue of MoI taking several hours to export a file in the first place. When it comes to product design models are often highly detailed, there should then be no limitation on the complexity of the part. That would defeat the purpose of product design.