I made some more research on this problem and found another one. I
think it's linked.
The 30th day of puppet (the one the more on the left side in puppet-
dashboard) is slowly decrasing in term of successfull reports. So the
chart for this day is slowly decreasing as long as the day go on.
I guess, but I'm absolutely not sure, that the extract for the 30 days
is straight. I mean it takes 30 times 24H so as you day goes on the
30th day go by.
I think that's a bug since it can lead you to think that you had a
problem for this day.
So to be completely clear the graph :
- takes day -31 to -1 but not the current one
- is managing the -31 day as running and only show the reports
depending on current time.
I'll have a look in bug to see if I got to log something.