I periodically observe what seems like a bug in hydration tracking / syncing.
The water counter retracts without any reason. Sometimes it is silent, I just open widget, and it shows lesser number than I entered this day. Sometimes I can see how widget opens, shows correct value (say 3 cups) and in a second this value goes down to 0 (I guess when it syncs with phone?). But I never enter or edit Hydration value on the phone, so there is no reason for phone's value to take over what I've entered on watch.
Any suggestions how to make it more reliable?