Which version of 4.27 are you using? Could you give some details on what you are trying to do and that is failing?
Did you use the latest Rhino exporter for 4.27 you can find here? Datasmith Exporter Plugins - Unreal Engine
Which version of 4.27 are you using? Could you give some details on what you are trying to do and that is failing?
Did you use the latest Rhino exporter for 4.27 you can find here? Datasmith Exporter Plugins - Unreal Engine