How to update music information (audio nodes)?

When I amend my music information in Rhythambox & rsync it to OSMC & rescan, only some of the information updates correctly on OSMC. Information like the Album Title, Artist or Genre updates but not the 5 star rating. I want to create smart playlists & only play my most popular song. It is a real pain to try & update this type of info via the OSMC on a TV.

Why does the 5 star rating not change on OSMC when it was updated in another tool when some other info do change?

Does anyone have better ways of updating info like the music 5 star rating on a Pi2 connected to a TV & LAN? I can’t seem to find a easy to use way to access the Pi2 & update information.

I would really appreciate some advice.