Hello—I’m using plexamp version 3.8.1 on iOS with PMS version 1.24.5.5173 on Win10.
This morning, when trying to play track radio, I get the error “Couldn’t start playback”. I am able to play songs, albums, playlists, etc. and even album radio. This happens whether on iPhone or iPad (15.1). Track radio was working as recently as yesterday I think prior to the 3.8.1 update, but I’m not certain. It was definitely working with 3.8.0 because I was playing track radio when I noticed the CarPlay bug that was fixed in the newest update.