It seems that UE4 has a problem with importing Inventor Assemblies and Subassemblies. Files are either the wrong orientation or missing their geometry completely.

This was reported and tested in 4.24.3 (CL-11590370). this was reproduced in 4.25 (CL-13144385) and Main 4.26 (CL-13501559)

Steps to Reproduce
  1. Download and extract the attached file and the within it
  2. Open the UE4 Editor and create a Blank Datasmith enabled project
  3. Import the file “2020-A0105.iam” via Datasmith

Results: Parts are not imported correctly. No error message, just creates a dummy actor and no geometry

Expected: The result in Unreal Engine is the same an shown in Inventor 2019 Pro

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ComponentTools - Datasmith
Affects Versions4.
CreatedMay 22, 2020
UpdatedAug 12, 2020