During 2 days (out of many w/o issue), I have synced using the mobile app (w10m) after doing an activity. Both times had OK cell reception but got an error both days syncing. Re try and all syncs, except the HR data or sleep data. Now I do see the HR data in my activities but under Health Stats, no sleep or HR data is available for that time since last sync. I have all sleep data for every day for the last week + so something is getting dropped during sync. I was assuming if I had a flaky cell connection and got the error, that may be the issue but it's just the above data and only how it's displayed in GC, since my activity data is in tact including HR. Wondering how common this is and if I need to just make sure I have a solid connection?