Both times the timer was started through Google Assistant using the knock knock gesture to pull up GA. Both times the timer started and was counting down as evident by either watching the timer screen or setting the icon on the bottom of the watch face.
Some time later I would check my watch to see how much time was left only to find the timer was no longer active. No indication by the icon and if I pulled up the timer app it would be back on the original time.
I can't be positive if somehow there was a false registration of the double pinch gesture but I think there needs to be something making this harder to activate if that is the issue. Or maybe the timer went into the background and the process was killed, no way to tell.
I am also having this issue, the timer pings for a second then automatically switches itself off. Not very good at all and if your busy you will miss it. Very different to the phone timer which shows on both phone and watch.
