If you experience an issue where a trigger fails to send any emails, it may be because you have not refreshed the list recently.

It can happen that an email will be sent to 0 contacts if the list is not sync'd prior to the triggered send. If the list has been imported but not sync'd then Vuture will not be able to pull any contacts.

The solution is to go into the Contacts Module and click Refresh from CRM for any lists prior to sending or setting up a triggered send.