egressIP with IPv6 not working on dualstack cluster on openstack

2024-01-16T14:48:18.156140746Z I0116 14:48:18.156053       1 obj_retry.go:358] Adding new object: *v1.EgressIP egress-dualstack-ipv6
2024-01-16T14:48:18.161367817Z I0116 14:48:18.161269       1 obj_retry.go:370] Retry add failed for *v1.EgressIP egress-dualstack-ipv6, will try again later: cloud add request failed for CloudPrivateIPConfig: fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333, err: CloudPrivateIPConfig.cloud.network.openshift.io "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333" is invalid: [<nil>: Invalid value: "": "metadata.name" must validate at least one schema (anyOf), metadata.name: Invalid value: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333": metadata.name in body must be of type ipv4: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333"]
2024-01-16T14:48:18.161416023Z I0116 14:48:18.161357       1 event.go:298] Event(v1.ObjectReference{Kind:"EgressIP", Namespace:"", Name:"egress-dualstack-ipv6", UID:"", APIVersion:"", ResourceVersion:"", FieldPath:""}): type: 'Warning' reason: 'CloudAssignmentFailed' egress IP: fd2e:6f44:5dd8:c956:f816:3eff:fef0:3333 for object EgressIP: egress-dualstack-ipv6 could not be created, err: CloudPrivateIPConfig.cloud.network.openshift.io "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333" is invalid: [<nil>: Invalid value: "": "metadata.name" must validate at least one schema (anyOf), metadata.name: Invalid value: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333": metadata.name in body must be of type ipv4: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333"]
2024-01-16T14:49:37.714410622Z I0116 14:49:37.714342       1 reflector.go:790] k8s.io/client-go/informers/factory.go:159: Watch close - *v1.Service total 8 items received
2024-01-16T14:49:48.155826915Z I0116 14:49:48.155330       1 obj_retry.go:296] Retry object setup: *v1.EgressIP egress-dualstack-ipv6
2024-01-16T14:49:48.156172766Z I0116 14:49:48.155899       1 obj_retry.go:358] Adding new object: *v1.EgressIP egress-dualstack-ipv6
2024-01-16T14:49:48.168795734Z I0116 14:49:48.168520       1 obj_retry.go:370] Retry add failed for *v1.EgressIP egress-dualstack-ipv6, will try again later: cloud add request failed for CloudPrivateIPConfig: fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333, err: CloudPrivateIPConfig.cloud.network.openshift.io "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333" is invalid: [<nil>: Invalid value: "": "metadata.name" must validate at least one schema (anyOf), metadata.name: Invalid value: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333": metadata.name in body must be of type ipv4: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333"]
2024-01-16T14:49:48.169400971Z I0116 14:49:48.168937       1 event.go:298] Event(v1.ObjectReference{Kind:"EgressIP", Namespace:"", Name:"egress-dualstack-ipv6", UID:"", APIVersion:"", ResourceVersion:"", FieldPath:""}): type: 'Warning' reason: 'CloudAssignmentFailed' egress IP: fd2e:6f44:5dd8:c956:f816:3eff:fef0:3333 for object EgressIP: egress-dualstack-ipv6 could not be created, err: CloudPrivateIPConfig.cloud.network.openshift.io "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333" is invalid: [<nil>: Invalid value: "": "metadata.name" must validate at least one schema (anyOf), metadata.name: Invalid value: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333": metadata.name in body must be of type ipv4: "fd2e.6f44.5dd8.c956.f816.3eff.fef0.3333"]

$ oc label node/ostest-8zrlf-worker-0-4h78l k8s.ovn.org/egress-assignable=""

$ cat egressip_ipv4.yaml && cat egressip_ipv6.yaml 
apiVersion: k8s.ovn.org/v1
kind: EgressIP
metadata:
  name: egress-dualstack-ipv4
spec:
  egressIPs:
    - 192.168.192.111
  namespaceSelector:
    matchLabels: 
      app: egress
      
apiVersion: k8s.ovn.org/v1
kind: EgressIP
metadata:
  name: egress-dualstack-ipv6
spec:
  egressIPs:
    - fd2e:6f44:5dd8:c956:f816:3eff:fef0:3333
  namespaceSelector:
    matchLabels: 
      app: egress

$ oc apply -f egressip_ipv4.yaml
$ oc apply -f egressip_ipv6.yaml

oc logs -n openshift-cloud-network-config-controller cloud-network-config-controller-67cbc4bc84-786jm 
I0116 13:15:48.914323       1 controller.go:182] Assigning key: 192.168.192.111 to cloud-private-ip-config workqueue
I0116 13:15:48.928927       1 cloudprivateipconfig_controller.go:357] CloudPrivateIPConfig: "192.168.192.111" will be added to node: "ostest-8zrlf-worker-0-4h78l"
I0116 13:15:48.942260       1 cloudprivateipconfig_controller.go:381] Adding finalizer to CloudPrivateIPConfig: "192.168.192.111"
I0116 13:15:48.943718       1 controller.go:182] Assigning key: 192.168.192.111 to cloud-private-ip-config workqueue
I0116 13:15:49.758484       1 openstack.go:760] Getting port lock for portID 8854b2e9-3139-49d2-82dd-ee576b0a0cce and IP 192.168.192.111
I0116 13:15:50.547268       1 cloudprivateipconfig_controller.go:439] Added IP address to node: "ostest-8zrlf-worker-0-4h78l" for CloudPrivateIPConfig: "192.168.192.111"
I0116 13:15:50.602277       1 controller.go:160] Dropping key '192.168.192.111' from the cloud-private-ip-config workqueue
I0116 13:15:50.614413       1 controller.go:160] Dropping key '192.168.192.111' from the cloud-private-ip-config workqueue

$ openstack port list --network network-dualstack | grep -e 192.168.192.111 -e 6f44:5dd8:c956:f816:3eff:fef0:3333
| 30fe8d9a-c1c6-46c3-a873-9a02e1943cb7 | egressip-192.168.192.111      | fa:16:3e:3c:23:2a | ip_address='192.168.192.111', subnet_id='ae8a4c1f-d3e4-4ea2-bc14-ef1f6f5d0bbe'                         | DOWN   |