Recently, I've noticed my Split Pace and distance to be very off. At first, I thought it was my Apple Watch series 6 that was providing inaccurate data.  But today I ran on the treadmill where my watch and treadmill provided consistent data at a consistent pace, whereas when I uploaded to Strava, the pacing was all over the place by 20-30 seconds off of what the watch and treadmill were telling me. The total distance in the splits was also off by 400 meters, but the overall summary total distance looked accurate.

The treadmill run / loading the activity onto Strava looks like it confirms the fact that my Strava has been grossly inaccurate when uploading the data off the watch. Anyone else experiencing this issue and any tips to fix?