On iPhone Apple Watch app I have 1 playlist that I synced. I see 700MB on the watch used for music and Apple Watch app indicates it is synced. I have BluebudX headphones connected to the watch. When watch is connected to iPhone I see all music from phone available. However, once I disconnect the iPhone by turning off bluetooth, the watch tells me that my entire library is unavailable, not even the "synced" playlist. Why can't I see this playlist on the watch even though the watch app says its synced?