I'm having an issue with some workouts not syncing off of my 910XT. I did a run on Oct. 28 (indoors, no GPS data), a swim Oct. 29 morning (pool swim), and a bike ride Oct. 29 evening (outdoors with GPS on). After syncing last night (repeated attempts) the pool swim synced but the other two workouts did not. This is a new issue as I've had this device for a year with no problems. The workouts show up in the device history, so they are still there.
FWIW, I've suddenly started having much the same issue. 80% of workouts syncing correctly, 15% only syncing after repeated attempts, 5% workouts not syncing at all - just getting skipped over. They are viewable/stored on the device (910XT), but will not upload to Garmin site.
