Hello, my wife has a Venu 2S (firmware v8.11) and every time she listens to MP3s recorded on her watch, she notices that her battery is draining fast. Only turning the watch off and on again always solves the problem. The Bluetooth headphones are back in the charging case and I'm sure the player on the watch is stopped. Any idea where the problem might be, or if it's a known bug in the 8.11 firmware?