Have noticed this mostly during strength training. I'll hit the button to end a set, then the rest period starts and about 25% of the time the next set will start on its own while I'm just standing there.
Also at times the watch will randomly go to the stress or heart rate widget on its own.
This morning was the worst where it went to the notification screen on its own and wouldn't come out of that screen no matter what I did. Even the back button didn't take it back to the time screen. The screen just kept flickering and cycling through the notifications and wasn't responding to me swiping right trying to get back to the watch face.
