When I sync my Enduro 2 before I sync my Edge 840, the intensity minutes from the Edge wont be added to the overall count on Garmin Connect.
On the device itself (Edge 840 solar), the intensity minutes are still there and it will add the intensity minutes from my watch, but on th watch and Garmin Connect the egde minutes are missing.
This is only when I sync the watch before i sync the Edge.
That cant be a problem to fix by garmin I think. I cant find any bugreporting site to report this directly to garmin.