The step count and sleep movement data suddenly went missing from my 920xt syncs. It worked for several weeks (just got the watch over Xmas) but now I loose all the sleep data and any steps that get counted after syncing but before the end of the day. If I fail to sync the device one day, I get no steps.
I've tried resetting the 920xt and clearing out all the activities - no help. Correct step counts show up on the watch itself for the past week.
920 xt software version 2.70
Garmin Express software version 3.2.30.0