#7456 changes compute orchestration to match host interfaces to the VM interfaces, which is usually matching based on the hypervisor network.

The orchestration iterates over host interfaces and attempts to find a VM interface, but if this fails then there's no logging provided to debug the situation.

https://github.com/theforeman/foreman/blob/1.8.0-RC2/app/models/concerns/orchestration/compute.rb#L294-L295

Here's an example of adding some debug:
https://github.com/theforeman/foreman/compare/develop...tstrachota:nic_debug