[ovirt-users] Removing VM disk issue

Hi guys, I'm trying to remove a VM and reclaim the space that the VM was using. This particular VM had a thin provisioned disk attached as well as "fat" provisioned, the "fat" disks I managed to detach, however when I try to remove the VM, it says "The following disks are locked: Please try again in a few minutes. Attached is a screenshot from the GUI side, showing the proxy disk being locked, any ideas? I'm wanting to completely remove the VM and reclaim the space for the datacenter. Thank you. Regards. Neil Wilson