Solidworks 2018 Virtual Parts aren't imported

When importing a Solidworks 2018 CAD assembly, if the part in the assembly is a virtual part (denoted by brackets in the feature tree), a part that exists only within the assembly, the part and related sub-assemblies (if any) do not appear when the assembly is imported.

This issue is in 4.19.2 (0.182) and 4.20 (4.20E2)

1. Download the attached zip
2. Open the UE4 Editor and create a blank Unreal Studio project
3. Navigate to the Import DataSmith button, click the dropdown arrow, and select Import CAD
4. Import the .SLDASM or .sldprt file

Results: The Virtual parts aren't imported

Expected: Virtual parts are imported