Since the mod closed the other thread.
I got the same issue of this thread;
https://forums.garmin.com/showthread.php?222122-Garmin-Express-sync-working-but-activities-not-uploading-to-Garmin-Connect
Garmin Express told me everything is fine but there's no activities uploaded since Feb 8th on my profile.
When I want to unlink my Forerunner 410, Garmin Express crash.
Any ideas?
Thanks