I did a quick check on an rpm installed OCP cluster on openstack with the reported version v3.3.1.5, I could see the volume detached from node after the pod was deleted.
@Jianwei : Can you also try of this disk was available or attached to new pod as the issue appears for the new pod when attaching.
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days