Used Track Exercise and mileage changed when finished?

[Lindag199]

I walk in the same park, along the same path and today my route measured differently. I walked 3.07 miles in just under 53 minutes with a pace of 17.10, according to the app. After completing my walk and my Alta syncing with the app, my walk changed to 2.38 miles with a pace of 22.11. This is not possible. Please see the attached photos, with split time for each mile and the course that I walked. Can someone please explain what happened? This is driving me crazy, I walked over 4 miles yesterday and it is fine.

I noticed when I logged onto the website, my dashboard there has the correct pace, but still only 2.38 miles.

[KT_Gray]

Same issue for me today and yesterday - desperately searching for a solution - anyone have any ideas of how to fix please? 

[Lindag199]

I just found another post after your response @KT_Gray with the same problem. I tried the app again today and it was worse. It almost seems as though the faster you go, the more distance you lose!!

Just prior to ending my walkAfter completionAfter completion

[Chiffonbear]

I have the same issue.  I walk tomthe same park every time but last night I started to run for a short distance - then my report only shows 0.25Km not too sure is the device only capture those minutes that I ran?!

can anyone help?

[Lindag199]

Here is a little more information, the screen grabs below are from the web dashboard. Interestingly, the map has the correct information, the banner is incorrect for distance but is correct for pace!

Distance incorrect in banner, pace & map correctDistance incorrect in banner, pace & map correct