Situation: * host A has configured host B as "parent" * host B is renamed in UMC to host C * host A still refers to a non existing host B as parent * the Nagios config is broken, Nagios will work with the old config and won't (re-)start anymore Expectation: * UDM computer modules should update these referrals if the hostname is modified
workaround: either undo the rename or update the referral on all affected computer objects
This is partly a duplicate of Bug #29709 and there is the generic issue in Bug #32192 for all references in computer objects.
Nagios is discontinued -> WONTFIX