VMware Live Recovery 9.x
Site Recovery manager 8.x
If Recovery Site vCenter MOB(Managed Object) displays "managedByInfo" property for Placeholder VM as unset, it indicates that the placeholder VM is not properly configured to connect to the vCenter Server and is not being managed by Site Recovery Manager. This is typically a problem with the SRM's connection to vCenter caused due to Manual/unfinished changes.
Perform below steps to recreate placeholder VMs,