Why my "familyinstance.bygeometry" creat an empty famiy?

I trid to import a ".sat "file to revit though the node “familyinstance.bygeometry”. It seemed to success in the dynamo emviroment by not in revit. the family named "“texing” is a total empty family. what is the problem?

My guess is that the sat geometry is too tiny to be visible inside the family.

great!you are right. Thank you very much.The solid is too small in the family.
But why ? I creatd the solid in the CAD , whose dimension was aboout 10000.And convert it as “sat” file though the dynamo,choosing the unit “mm”.But as the result ,in the revit family ,10000 mm change to 10mm. May I need to study more about the unit.
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