Just got a Garmin Edge 520, set it up without too many problems. Synced it with my iPhone for Garmin Connect, got the app, all that was set as well. Do a workout, and I get a notification on the Edge that the workout was uploaded. Check the app, and it's there. Then I leave the app, and try to check it out on my desktop. No sign of it. Go back to the app, and the workout is gone. No evidence it ever happened.
Any clue what's going on here?