For instance, the track: Jamie xx - I Know there's Gonna Be (Good Times) I already have it in my library. And I did so even prior to installing Apple Music. Now, when I come across the track on Apple Music, it still allows me to "add the track to Music". After I do so, it creates a duplicate. In other words, it doesn't recognize and/or match the song to its Apple Music counterpart. Doesn't happen for all songs though. Haven't been able to figure out a pattern or what's causing this. Anyone else discover the same problem?