I have a newer flex box, it was sent to me around April(ish) and I have been watching it while using my apple AirPods through Bluetooth. Well, after some point my AirPods were no longer synced with the video. There is a substantial delay from the video to the audio using Bluetooth. I have restarted both the flex box and my AirPods to no avail. Please help as I can rarely use my flex box anymore as I would mostly use it at night while my husband was asleep and now obviously no longer can.