My Series 2 Apple Watch messed up yesterday. I ended hours walk checked the stats and press done as I normally do. When I got back to my desk I noticed the little running man was still running. I clicked on it and it just took me to the list of activities. I played around a little and the running man stopped. I then checked my workout on my Iphone X and it had not transferred from watch. I tried rebooting the watch and phone but it made no difference. I am disappointed this happened and I lost my workout. The activity figures were correct though so at least that's something. Anyone else ever had this happen?