Interesting, I encountered that kind of strangeness aboard a Paris-Moscow, where my phone GPS tracker pointed me earth level in Pulkovo airport (Saint-Petersbur

Interesting, I encountered that kind of strangeness aboard a Paris-Moscow, where my phone GPS tracker pointed me earth level in Pulkovo airport (Saint-Petersburg, Russia). I estimated I was over Belarus at that time. I never got to the why of this behavior. I did a screenshot of that event here https://ibb.co/eCrV9y https://ibb.co/eCrV9y