Run Fix Song seems to have made changes but Control Point still shows old data ?
If you are using SongKong with a control point remember that the control point is served by a UPNP Server, for example if using a Melco Audio Server it will be served by either Twonky or MinimServer.
So after SongKong has made changes the UPnP Server needs to rebuild its indexes to pick up the changes. Exactly how you do this depends on your hardware/software but for a Melco server it can be done by selecting Settings:Music Database:Rescan Songs and Playlists (However this returns Finished before it actually finished which is a bit confusing)
We don’t call this automatically within SongKong because it reindexes the complete database and if you are using SongKong to modify an album at a time you’ll not want to reindex the complete database each time.
At the moment UPnP servers such as MinimServer do not provide a way to update only part of an index.