and it is very succesful to export to revit via rhino inside revit ,
unfortunately, i find it cannot export the mesh material i.e. the map picture to revit ,
For now, I think there is no way to transfer this material from Lands to Revit using Rhino.inside.Revit… I will let you know when this is possible.
As for the problem after exporting to fbx… Once you download the mesh from the Earth importer, what you have is Rhino geometry with a material, so I think people in McNeel will know better how to solve this: Rhino - Rhino Support