I've had this happen to me a few times, but I can't make it repeatable. Seen it in MS as well, not sure what the cause is.
Graeme
1: Samsung 12.2" SM-P900: Android 5.0.2
2: eSTAR GRAND HD Quad-Core 4G 10.2": Android 5.1
3: Home-built BT pedal
Some of my music here
1: Samsung 12.2" SM-P900: Android 5.0.2
2: eSTAR GRAND HD Quad-Core 4G 10.2": Android 5.1
3: Home-built BT pedal
Some of my music here