[ovirt-users] ovirt 4.3 - locked image vm - unable to remove a failed deploy of a guest dom

Hi all. I've deployed a VM from a corrupted template (it's disk is missing, but I've checked it later...). My Software Version is:4.3 Now, I have an unmanaged VM in inventory and unable to remove it too. It's reference is "locked image". I've restarted ovirt-engine many times on self-hosted engine and hosts too, but no benefits. So, what's now? I've also consulted: https://access.redhat.com/solutions/396753 but still no results. No tasks or items results to be "locked"... Any other ideas? Thanks a lot.