Thresholds and Time Interval

Trying to get either the Thresholds or Time Intervals to work.

As an example, I can filter for "LINK-3-UPDOWN" no problem.  Set the simple filter, add an email action, wait a bit and then start getting emails.

Then I add a threshold, 'Filter is true if event occurs 2 times in 3600 seconds.   I can see link messages coming in, up/down on one interface every 5-10 minutes.   It should trigger an email but I get nothing.

I also tried a time interval, Fire this event once, then wait for 15 minutes before firing again.  I never get any email.  

Do these work in Legacy 9.8.3 or am I doing something wrong?