I just finished doing a 40 minute workout with my HRM and connected to the vivo fit (I was able to watch my HR the whole time) but when I synced immediately after it would not show on connect. I just got this device three weeks ago.... Why would it not be working. I even deleted the app and re-paired it with the vivo fit.... Still nothing. Very frustrated. The whole point of buying this was to monitor how many calories I am burning....