After updating the bpm device to 1.07 the synch via wifi works fine for the primary and the secondary user.
However the time stamp of the second user is wrong, consitently by 2 hours. So if the reading was taken at 7 am it shows in garmin connect as 5 am.
Two other garmin devices (scale and edge) sync properly, so it seems not mobile device or configuration related.
Anybody else has observed this?
@garmin: Known issue?
