Hi Val. Yes, most of the backfill issues have been resolved but there is at least one case we’re still working on. And your recent experience is a good example of it. You lost power and internet at the same time, internet staying “down” for more than 3 hours.
The Hub needs to know what time it is before it can store data. It sets its clock by either connecting ot the Internet or connecting to the smart weather app running on a phone or tablet. The AIR & SKY will buffer several hours of data - normally enough for the Hub to get its clock set. However, if the Hub goes past this buffer before it’s time gets set, you’ll lose some data. That’s what happened her.
We’re working on a better way for the Hub to keep track of time without an outside reference… it’s trickier than it seems!