We have analysed the data and found a quirk, that resulted in your issue.
Open SeeYou for PC, press the “tools” tab at the top of the screen:

Proceed by clicking on “options” tab.

Make sure that the checkbox “Soaring begin equals takeoff and soaring begin equals landing” is NOT checked:

We sincerely hope that you are to resolve your problems. If, however, you find yourself unable to achieve this goal, contact us and we will try a different method.