Daily stat anomaly

There seems to be some anomaly on my daily stats for 4/29. My hourly stats look ok (except for the persistent intermittent hourly holes) but the two week running daily stats show near zero for that day. I have a 2nd site that is virtually the same as this one except for a different antenna and the stats for that site are fine for that date. Any clues?

http://flightaware.com/adsb/stats/user/tonyscanga#stats-28577

We are looking into this issue but have not yet diagnosed what is happening in this particular situation.

Do you think it has something to do with the “hourly holes”? I believe its either the last hour of the day or the first hour of the day. Maybe some edge condition triggered by whatever is causing the holes. The holes started about the time you had the large stat problems.

Happened again on 5/4.

http://flightaware.com/adsb/stats/user/tonyscanga#stats-28577