Hi,
I have a few activities, recorded on the Forerunner 245 while windsurfing. I have a "custom" activity based on walking - which have named Windsurfing.
On Garmin Connect Web I set the activity to Windsurfing (which I can not do directly on the watch. When I try and look at the recording - I see I move - but in areas the pace / speed is missing. For some of the areas it is missing the speed/pace can be calculated to pretty much the same (average) than the parts shown. Sure they seems to coms shortly after "turns" that obvious are slower - but why lave it out?