For several reasons, Hot Add disks can stay mounted to a Virtual appliance after vRanger backup jobs finish.
On the virtual appliance, click edit settings. See how many disks are listed. If there are any that do not belong to that, VA or belong to other guest VM's, hi-light them and click remove.
DO NOT REMOVE FROM DISK.
This will leave the .VMDK in tact, and attached to the VM guest that owns them.