Let me clarify. I use Spotify to stream music via BT but the songs are stored on my phone for use in offline mode. Since the update to 3.5.1, every now and then I've noticed that a song will change tracks on its own (no input from me). Its never happened on 3.0.2 and its never happened while using Spotify anywhere else. I've done a master reset twice and the problem still exists but it's intermittent. I would have to sit in my car and listen to music for an extended period of time to see how often it really happens.
This was my exact situation. I'll try to use spotify a bit more this week and let you know if I see it happen again because you're right. It is a very intermittent issue.
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