Revit material translation using datasmith Import/Export

Hi there,

The infinitely thankful me for any guidance you may provide beseech your honorable self to frown upon the following issue:

Does anyone know why, when i import the *.datasmith * of this Revit file:

I get this unreal engine Archviz visual?:

PS: i did click the little boxes that asked me to import material and lights too.

Then again, many thanks.