Anyone experiencing empty blocks of no data recorded during sleep tracking? What could be the cause?
Anyone experiencing empty blocks of no data recorded during sleep tracking? What could be the cause?
it might be somehow related to the watch position during sleep hours
That would explain problems with heart rate data, but does not explain the gap in movement data.
I have no way of proving this. It is just an observation. It was happening more often on FR645.
I was talking about this particular case provided by OP. It is quite evident, that the watch did not register anything in this case, not only heart rate is missing, movement data is missing as well.