Apple Watch SE 2 elevation gain high after watchOS 26

Every since upgrading to WatchOS 26 on the SE version 2 the elevation for running workouts has been way high which throws off power and calorie numbers as well. A long run along a flat path showed 1000ft of elevation gain, on previous software this was never more than 200ft. A thread here shows several users with the same issues. Does anyone share this experience or know the fix?