As mentioned elsewhere, Roon tends to favour Tidal even when you already have the track in your library.
This becomes very frustrating when a track is played that you know is in your library and wish to 
but there is no practical route to do this if it’s sourced from Tidal.
This contradicts statements like;
“Roon goes beyond album art and track titles, to show you what you want to know about the music you love.”
It doesn’t show me the music I love is already in my library and doesn’t allow me to express my love to it!
Please fix
Thank you