Same thing just happened to me! I spent much of friday adding 100+ songs (I don't remember exactly how many) to a few playlists I had made previously. This morning I logged in to see some of those playlists either completely empty or missing a huge chunk of songs I had just added. This happened moments after I had continued adding a few more in. It went from 87 songs to 48. When I went to check the app on my phone, it briefly showed one of the playlists as it was before, and then it disappeared there too. Is there anyway to get them back?
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