I've been a premium user for a few years without any issue, until now. Tracks will not play seamlessly on my phone. They lag and drag, slow down and jump. Other music files play fine so I don't think it's the phone which I've been using for a year without issue. I have no problem with Spotify on my desktop. Have latest version and have tried restarts. Can anybody help? Thanks.
HTC S Android 2.3.5