I recall reading something about this problem before, but I didn't't experience it until I went for an hour's pool swim with my Series 3 Edition AW. When I placed the watch on the charger about two hours after my swim I didn't hear the usual ping sound. I tried a few Siri questions and got text answers, but again no sound. The sound system seems to have recovered after about seven or eight hours, although I don't think it's as loud as it was. I've frozen the screen with the tear drop icon and turned the Digital Crown to expel water a few times. Is this a normal series of events or should I take the watch to the Genius Bar?