Apple watch series 6 showing wrong altitude.

Hey!

Is anyone else experiencing problems with the Workout app showing the wrong altitude on the Apple watch series 6?

I live about 20 meters above sea level, but the Apple watch constantly display between 120 - 140 meters. I get the same altitude when i use the compass app one the watch. During a workout the app also shows the wrong altitude. Other 3. party apps like "My Altitude" show the correct altitude, so it seems the to be a software issue.

I have been in contact with Apple support. They sent me a new apple watch, but i have the same issues with the new watch.

Throbleshooting i have done:

• Contact Apple Support, the sent me a new apple watch - same problem
• Delete and reset the watch. Restore from backup, and tried setting it up as a new watch.
• Reset fitness calibration data.

Is anyone experiencing the same problem as me?