FR970 height completely off
I have a Forerunner 970 and recently went on vacation in the mountains. During my workouts there, the elevation gain readings were accurate.
At home, I live in a flat area. However, since my vacation (three weeks ago), my watch has been showing around 150 meters of elevation gain at home, even though it should be no more than about 10 meters.
I have already recalibrated the altimeter, but the issue persists. My watch also reports that I climb around 120 flights of stairs per day, which is roughly ten times too high.
What is going wrong, and what can I do to fix it?