iCal Alert Fails To Run Script

Hi!

I have an iCal alert that is set up to execute an AppleScript I wrote. The script is nothing special -- it archives some Mail messages. I have had this daily alert for a couple of years now, but with a recent OS update, the alerts fail to run. I get the following error in my logs:

Application App:"Archive Inbox" [ 0x0/0x54df4da] @ 0x0x7ff87263e8e0 tried to be brought forward, but isn't in fPermittedFrontASNs ( ( ASN:0x0-0x503c037:, ASN:0x0-0x1001:) ), so denying.

I don't understand this, as I personally wrote the script, it was not downloaded from the internet. Further, my Gatekeeper is disabled:

~$ sudo spctl --status

assessments disabled

Any ideas?

Many thanks in advance,

-Armen