I have tried to calibrate my Forerunner 955 by running 4 laps in track mode. After 2 laps it snaps to shape though it appears to be too narrow to fit the track exactly. I stopped and saved this activity as per instructions for calibrating a track. I then started a new track run and did 2 laps but you can see they are not shaped to the track. It seems watch is not remembering the track? Would appreciate any recommendations? Thanks!