I've had a few activities that appear to record normal, the time, mileage, speed, etc is correct at the end of the activity. After I hit save, and it sync's, two issues crop up. First, the activity doesn't appear in the feed until the next day, and second, the time is accurate, but the mileage is 1/2 mile or so instead of the 10-20 I actually rode. I've tried deleting and re-loading the app, but that doesn't seem to have fixed it. This started when I upgraded to the current software release. I also had two instances where the activity wouldn't sync at all. I had to export them to .gpx files, delete them from the app, then import the gpx files from the web page. Thanks for your help.