Update on my band and MS Health not working.
While my band is off and at home at the moment, I was able to get Health working by uninstalling/re-installing it.
Just did the upgrade last night..found I had to hard reset aftterward because it was really buggy. First hard reset would not find right backup..rinse, repeat and found the correct back up. So far it is working well except I cannot find Quiet Time to set my hours again and I can't seem to use a custom ringtone, which is a bummer.