I've been using the S Health (walking mate) app the last few days, and it consistently will reset the number of steps taken. IE it will show 1000, I walk around a lot, and I see it up to 3500+. Then after a while I bring my phone out again and see it's down to 700. Today it went from 1500+ to 0 on my way to work. Does anyone else have this issue, or know a way to fix it?