Rhino Geometry not showing in Packaged Game

I have imported a Mesh FBX. file from Rhino into UE4. The geometry imports well and shows when doing a ‘Test’ within the UE4 editor after completing a build. However, when I package and open the game, the geometry is missing and only shows the Black Base work plane that you see when you start up UE. Has anybody got some packaging tips or even tips from exporting the model from Rhino?