Polyline with billboard showing below geojson?

I drew a entity with a polygon, and a billboard.
I drew a geojsondatasource of the US. The polygon is hidden underneath the geojson data. Is there some way of specifying order of what gets drawn on top?

You mean for just for 2D stuff that’s in the same position, such as both clamped to ground in the same spot, like zIndex for HTML? Or for 3D as well, such as objectB is behind objectA from the camera’s point of view, but draw objectB in front of objectA anyways?

There’s no way to specify the order yet, but it is on the roadmap. A big part of this is the vector data on terrain work currently being done; so I expect things to start to get better in the near term.