I woke up to see I was in the process of a 3+ hour walk twice overnight. I discarded each time. I thought maybe the screen had just landed on the wrong thing in my sleep. But after I was awake and know it was on the normal home screen, it started a walk again. It was a GPS walk each time, which is further down in my activities menu.
Why is this occurring and is there a way to prevent it? It dropped the battery over 30% looking for GPS while I slept. I did a reset (?) where I hold down the first button for around 10 seconds to shut down and when it turned on it was on the save/discard activity screen again showing an 8+ hour walk even though I keep discarding. This also would have started my walk almost 3 hours before I went to sleep, but I know there was nothing on my watch at that point, plus I did a breathwork activity just 5 hours ago that saved fine. My body battery/stress shows I was active that entire time (the walk shows 0 steps) and kept the body battery at a flat line the whole time I was asleep (about 5 hours of the 8 hour activity). It's not recognizing any sleep time at all.
I am on 2.7.