This has been bugging me for a few months now. When using Spotify on my iPhone 6+ on iOS 10, over bluetooth to my JBL speaker or to my Nissan Leaf audio system, Spotify plays one track... and at the end, it keeps counting the time. On the Leaf display, it shows the track time just counting and counting and counting. If I keep driving for another 20 minutes or so, the next track will finally play. Same thing with my JBL speaker at home. It's like when connected over Bluetooth, Spotify makes the track lenghts 10X what they actually are. Really sucks!! And if I try to open the app to force it to the next track, it freezes and crashes. If I mess around with it enough, sometimes (about one in 20 times) it will eventually start playing tracks normally. Really sucking.