(1) It seems to display the same few albums from my music library, over and over. Occasionally some new things will appear but not very often.
(2) I have tried banning a number of albums so that they won’t show up in Discover any more, but it doesn’t work - they still are featured in Discover over and over
Any thoughts about how to improve either of these problems?
I don’t know about your Discover problem and what causes it. I would suggest opening a ticket in Support ( ← click here and then Get Help). Roon staff does not monitor here in Roon Software Discussion.
However, the banning has nothing to do with Discover. It prevents the banned artists/albums/tracks from being played automatically. E.g., banned artists won’t be played by Roon Radio, banned tracks won’t be played when you play the album that contains them, etc.: