I have a simple notification doing a simple compare operation on a point value (0 or 1), with a periodic check of one minute. ("Notify only on change in status" is on but no resend or non-repetition interval set).
The device reports values once a minute, and got into a state where it was toggling on and off nearly every minute.
This generates lots of notifications, as expected, but on examination not as many as I would expect. During a particular period there were 45 instances where there was a transition from 0 to 1 (the notification condition), but only 10 triggers.
Is there some other duplicate/noise suppression happening here, or some other explanation why I'm seeing fewer triggers than transitions?