On the question
On the question
The sync through garmin connect is failing silently. It acts as if it is syncing, with the green dot showing device connected. But if you go into the device details in the app to discover this it may show a red circle with an exclamation point. That means the sync is not actually working. Try Garmin Express instead, it worked for me - although it's quite annoying to have take off my watch to do that.