I have 2 Plex servers. One on a WD NAS and one on a Mac Mini, both have 50000 tracks on them.The former is permanently unavailable and the Mac Mini is available but when I select the library where most of the files are it reverts to another folder with only two 5.1 albums in it. So when I select Library Radio it alternates between these two only. Looks like a long way to go yet.