Can not change tracks when streaming blue tooth

I have a 13 with stock non-nav head unit. It connects to my Galaxy S3 no problem but will only play one track. I cannot skip tracks. Anyone got any ideas?

 

Is it only when using the stock Android music app or when using any player (Amazon MP3, WinAmp, etc.)?

 

Are you sure you aren't playing a single song, ie no playlist? Can you pause or play from the head unit? I've had issues before, likely the phone. Ensure you do not have multiple music apps running as well, mine will get confused at to which one to control. Also if you do not see the music info on your lock screen, then something might be wrong as well. I've noticed whenever that happens I am unable to control it as well.