Apple Watch gps issue

Again if the reset with the digital crown and side button didn't work your can always try re-downloading the app. Is it the app on your watch or you iPhone? If so try re-downloading it in case there's something wrong with the software. If all else don't work you can always try to reset your Apple Watch to default setting. Settings -> General -> Reset -> Erase all content and settings.

Is the gps tracking correctly tracking?

Go for a run with the Apple running app on the watch and Strava on your phone.

compare the data.

below image is my data which I have Apple stumped, been ongoing for months now even on a replacement watch.

They have an hardware problem.

Reset your Watch by pressing in the crown and side button until you see the Apple logo, then release both.