For the alarm in the screenshot you attached (or any test alarm you have used for that matter), did it originally open as a major alarm? Or could it have opened as a minor alarm and then esclated to a major alarm later? If that were the case, I am not sure how that would affect the "on overdue age" mode of the profile. I suspect it was probably major from the start, but I thought I should ask since the alarm details do not really indicate one way or the other.
One more dumb question. You did not end up with an operating period in the AO profile somehow, did you? Have you also checked the other tabs within the AO profile for strange settings?
The only other things I would potentially do before opening a support case are testing using different AO actions (like generating a new alarm rather than sending email) or make tweaks to the criteria (like making sure it matches some alrams when the user tag is removed from the criteria or when the probe name is removed). You have probably already done some or all of this anyway. I might also turn the loglevel way up to see if maybe the NAS explicitly says when it tries to match the alarm with each profile and why they do not match. That might be a long shot, but it would be tremendously informative if that information were to appear in the log.
You could also try to specify a regular expression as the user tag match in the AO profile. Start with /Calgary Windows/. If that actually works, you should try /^Calgary Windows$/ and see what happens.
Otherwise it looks to me like you might need to open a case with support. Someone else (like Dustin) may spot a configuration issue that I have missed, but you could get the wheels rolling with support anyway. You can always close the case if you get it working without the help of support.
Keep us posted. This is a strange one.
-Keith