Vivoactive 3 is connected to the Connect app, data being read and displayed, but data will not load into the app.
I have turned the phone and watch off/on together and separately, removed and reloaded the app, removed the watch from the app and put it back in, turned bluetooth on and off again. Still shows activities but will not sync them.
Try it with Garmin Express over the USB cable, or manually; How Do I Manually Upload an Activity I Recorded to Garmin Connect? | Garmin Customer Support