To setup I've attached a template that shows the example. The template has a zabbix trapper item in it and a trigger that checks if the value > 0. The trigger name uses

{ITEM.VALUE1} in it so the message should say "Test Trigger - <value>". I use the Zabbix Sender to send a value of 1 which triggers the PROBLEM event. This shows up correctly under the Events screen. Then I send another value this time with 0 so the RECOVERY event occurs however in the Events page the {ITEM.VALUE1}

macro isn't resolved with the value "0". Attached screenshots.