Time Limit Doesn't Work Correctly

Child has been alerted multiple times - " Notified - Daily time limit reached".  We have time limits set at 16 hours per day (essentially, 'no limit')  However, when reviewing the activity log, the child has only used 1-2 hours per day.  Yet, MULTIPLE alerts have been received.

I continue to believe this product is beta and not ready to charge customers for such nonsense.