I would think this is an android bug as well. It's been mentioned on the old forum before:
The developer is aware of the issue, though I'm not sure if he has a fix yet.
Love MX Pro! Your H/W+ was the only thing that fixed my video stuttering issue on my HTC One with Android 4.4.2, thanks! My question is if there is a way to fix the Bluetooth audio lag while watching videos? It's about 1-2 seconds off. I think it's a Android bug, and did not have the problem on my HTC Sensation on ICS.