I have had a Forerunner 955 Solar for a few days and noticed that the altimeter and barometer values drop significantly during the night. After GPS calibration, everything returns to normal by the following night. Has anyone had a similar problem?

I have had a Forerunner 955 Solar for a few days and noticed that the altimeter and barometer values drop significantly during the night. After GPS calibration, everything returns to normal by the following night. Has anyone had a similar problem?
