Hey Brian,
Could be a bug more than likly, but if you have the master reset at 0 hour and the rain reset at 9 hour you tend to get the rain reset at both times which isn’t quite right im sure.
Should there be a check in you programming to see if there is a different time set for the rain reset time when it does the master reset so that it dosent do this? It dosen’t look good on the graphs to have it reset at 0 and at 9 and it also messes up the daily rain totals.
Tucker