When I try importing with an Editor Utility BP I at least get an error message:
LogDatasmithImport: Error: Datasmith import error: no suitable translator found for this source. Abort import.
LogBlueprintUserMessages: [BP_ImportRhinoFile_2] “D:\SM_BathTub02.FBX”
LogWindows: Failed to load ‘libalias_api.dll’ (GetLastError=126)
LogWindows: File ‘libalias_api.dll’ does not exist
Another user had the same problem trying to import IFC files and apparently that was because the IFC import was not supported yet.
I am tried importing STEP, FBX, 3DM, all with the same error…