Since the update, I've noticed issues with the watch running out of battery in the day. I've NEVER had this problem before. One thing I noticed for a few days, the green walking guy is at the top of the watch even though I ended and saved my activity. I use it while working out on the treadmill. I can't get it to go away. When I open the app, it's normal - in the screen where you pick your activity. What am I missing or what can I try?