Keeps a lease in use; all options in the VM-tab are disabled and i have no way of releasing this lease.
I found a probably similar question without an answer.
I am not able to reproduce the problem in OpenNebula 5.2.1 or 5.4. I’ve tested the method described in the linked post (changing the vnet name) in both versions but after terminating the VM the lease is freed.
Which version are you using?
Do you use terminate action to finalize the VM?
Do you have any other information that can help us reproduce the problem?