nova-next (and possibly others) is broken because of
https://bugs.launchpad.net/tempest/+bug/1959682
The fix is at https://review.opendev.org/c/openstack/tempest/+/827305,
with a Nova DNM patch to exercise it at
https://review.opendev.org/c/openstack/nova/+/827306
Please hold your rechecks until this is resolved.
Cheers!