I have the same on Nothing (a) - but it is a daily recurring issue - after approx 8 - 10 minutes the left bud makes an a sound like USB connect signal and audio drops. It can be restored by putting both buds back in the case and reconnecting - but then the same thing keeps happening. Tried firmware upgrade >>> no change. It is not a charging issue - although my left bud is continuously less charged than the right - but that seems to be a universal phenomenon that Nothing are doing Nothing about…….
