Zabbix. Why triggers on events from the past?

Question

Zabbix

Colleagues, tell me this:
I'm trying to monitor some events in Windows Server. As a test, gpupdate events are needed (even id 1500 and 1501)
Made item:

Ключ: eventlog[System,,,,1500|1501]
Тип элемента данных: Zabbix агент (активный)
Тип информации: Журнал (лог)

and a trigger for it:

{Template Servers OS Windows:eventlog[System,,,,1500|1501].logeventid(1)}=1

As a result, the trigger works on old events of a year ago. Why? How to make it work for the current moment?

Answer 1

https://www.zabbix.com/documentation/3.0/manual/co...

mode - possible values:
all (default), skip - skip processing of older data (affects only newly created items).