Virtual Machines are removed from schedules if offline
Virtual machines are removed from schedules automatically if the VM is found to be disconnected/inaccessible during a Unitrends inventory sync. This could be because the ESX server is down or because the VM is unreachable due to losing contact with its storage. Historically, the purpose of this behavior is to reduce manual cleanup of schedules as well as backup failures caused by deleting virtual machines. At present there is no alert or audit log to inform the user of this action.
This behavior is being reevaluated for the next major release.
LINK TO ADVISORIES