This happens with my hearing aids. They cost a small fortune, but the audiologist won’t do anything about it because it’s intermittent - I can never show it happening. “The charging case must be dirty” etc. The manufacturer, Phonak, says any fault reporting must be done through the retailer. It seems to happen mainly when I’ve got something on where I really really need to be able to hear properly, or when I want to use Bluetooth to listen to music.

AAAARRRRRRGHHHHHHH is putting it mildly. My fury knows no bounds.