Grab the exporter plugin for Revit from here: Datasmith - Unreal Engine
Import the .udatasmith files into the new 4.21 release of Unreal Engine & Datasmith.
Review documentation here: https://docs.unrealengine.com/en-us/…opGuides/Revit
I am going to close this topic since Revit is now supported. Please feel free to start a new topic for ongoing discussion and feedback.
Cheers