Hey Mike,

I created my soup playlists over again, and they seem to not refresh at a high level when the tags are changed. Here is an example soup:

Genre and Artist
By Genre, sort by Title
By Artist, sort by Title
By Source, sort by Year

I created this soup in jEmplode 62 and it worked as expected. Now I have a Genre->Artis->Album soup that I wanted, with the Albums sorted by the year. I drilled down into a familiar artist (Radiohead) to see if the Albums were indeed sorted in order of release, and they were. I then discovered that I had ripped one of my albums (Pablo Honey) with an incorrect year of 2002 (when I ripped the album instead of the release date) and promptly changed all of the Year fields to 1993. This did not re-sort my Album listing in the correct order. If I view the Radiohead soup tree, it still lists the year as 2001 when all the songs under it are indeed marked as 1993.