Nagios XI is failing to apply configuration with the error:
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Error: Template '' specified in host definition could not be not found (config file '/usr/local/nagios/etc/hosttemplates.cfg', starting on line 503)I've checked all of our host definitions, and they're are all using templates that exist. I've also tried deleting and re-writing the config files from the GUI - no luck.
Any ideas?
Possibly relevant: we updated to Nagios XI 5.7.4 (from 5.6.7) last week.