Sea swimming with Apple Watch 2
My Apple watch used to track my swims in full, giving elapsed time and distance. Now it is stopping in mid swim ( for example today it only worked for the first 8 mins of my 45 min swim) and when I get back I have to restart the watch. There seems to be plenty of battery charge remaining. Any idea what is causing this fault? It works fine tracking on land.
Apple Watch Series 2, watchOS 6