Issue description:
If my Plex server is offline (because I’m not on the home wifi), I would expect songs in smart playlists to show grayed out when the global filter Playable media only is enabled, but they are not, they appear available. If I attempt to play one of the songs, Symfonium just sits there spinning with a message Preparing your medias, please wait.. If I look at the song details it correctly shows it comes from Plex, that Plex is currently offline and that the song is not cached. It has no chance of playing such songs, so it should not even attempt to.
It looks like it correctly filters out unavailable songs from the Library > Songs list (I only see about 1% out of all my Plex Songs that are in the offline cache). I would expect it to do the same for songs in smart playlists.
Logs:
Upload description: symtse1, symtse2
Additional information:
Reproduction steps:
Media provider:
Plex
Screenshots: