My research with different scenarios showed that the problem is probably related to the latest versions of libvirtd libraries and modules. I did test the previous versions of libvirtd and they worked seamlessly. So this may help you in resolving the issue.
@Vlad, I had reported this bug previously on https:/ /bugs.launchpad .net/nova/ +bug/1885418.
My research with different scenarios showed that the problem is probably related to the latest versions of libvirtd libraries and modules. I did test the previous versions of libvirtd and they worked seamlessly. So this may help you in resolving the issue.
Thank you