Motorola Roadster 2

I recently got a Motorola Roadster 2 that I am pairing with my HTC Thunderbolt overall it has been working great except for the fact that when I am streaming music through it the play pause button does not work. If I hold down the button it goes to the next track which is what it is supposed to do but if I just press pause button it does nothing. I have done a lot of searching but I can't find any information about this problem. Any help is greatly appreciated.