pytivox transfers 480p to roamio

I have been using the pytivox (on our mac mini) to transfer HD home videos (recorded in 720p or 1080p) to our TivoHD for years in HD. For the roamio, it transfers at 480p only. Both my tivo HD and tivo Roamio are on the network. But for whatever reason the roamio gets converted to lower resolution. TivoHD is okay.



Any reason for this? Is there a solution?