520+ Sync not registering on Connect

The device connects to Garmin Express okay and syncs - I can see items for update are removed from the update list; for example an update to an app.  However, on the Garmin Connect website the device is not showing as having updated and the previous date and time of update is still showing.  I logged out of both Express and Connect and re-sync'd but still don't see the update as having happened when I go back in, although there is no update (other than the Europe map which I don't need) sat there waiting.

How can I know if it actually updated or not?