New tracks that I add to playlists on my computer which I have stored on my computer are not being synced to my phone (Nexus 4) they're just grayed out. The phone is showing up in devices and all my other tracks which have synced successfully over the time I've been using the app still work fine I just can't get any new files on. Under the devices section is just says pending on local files also I am receiving "Only Premium users can download music to listen offline. Upgrade now." messages whenever I try to download a playlist but this never used to be a problem. I've attached an image of my devices tab.