I have a playlist called "A List" in which I add any song I am currently loving. On iTunes, I have it set to "Playlist Order (Descending)" meaning the most recently added song appears on top. The playlist has 300 songs in it, so I like to see the most recent stuff at the top. On Apple Music on iOS, the playlist appears in ascending order, with the newly-added tracks at the bottom. It does not sync iTunes' preference. There is no way to set the order on the phone. This is the biggest issue I have with Apple Music, and I doubt they'll ever fix it. So frustrating, so annoying. If anyone knows a solution, I would be in debt to them forever for illuminating me. I don't hold much hope.