From Zabbix Forum:
https://www.zabbix.com/forum/zabbix-suggestions-and-feedback/398023-discussion-thread-for-official-zabbix-template-ipmi?p=401928#post401928

template creates triggers using non-existing values/discovery macros, e.g.:
IPMI: Ambient value is above non-recoverable high (greater than

{#SENSOR_HI_DISAST} for 5m)
with expression:
ipmi.value[Ambient].min(5m)}>{#SENSOR_HI_DISAST}

This causes the trigger to be deactivated (unsupported).
I assume that the Discovery process should have populated these thresholds?