I'm running with a 620 and the stats after my run are normal on the watch, specifically pace, which on my last run averaged out to 10:10 per mile.
However after uploading to Garmin Connect the pace graph displays a constant 0:55 min/mi flat line even though all the stats displayed correctly show the 10:10 min/mi pace. The same data automatically transferred to Strava appears normal, i.e. variable pace consistent with what I actually ran. This has now happened on the last 2 or my 3 runs.
What's the corrective action here?