Adding tracks from media server to playlist isn't working

Is this a known issues for media server tracks?
i’m running MinimServer on my local network and have no issues with playback. However, when i try to add tracks to a playlist it doesn’t actually add the track to the playlist even though it gives me the pop up saying it successfully added said track to playlist. I go to the playlist afterwards and it shows up empty. No error messages just empty playlist. I’m wondering if playlists can only be done from local storage and not media servers. If that’s the case then why show the green pop up saying the track was successfully added?