Hit error when create pruning plan generation for delete phase using –generate for mirror2mirror

oc-mirror  version WARNING: This version information is deprecated and will be replaced with the output from --short. Use --output=yaml|json to get the full version.Client Version: version.Info{Major:"", Minor:"", GitVersion:"4.16.0-202404191609.p0.g9ac063b.assembly.stream.el9-9ac063b", GitCommit:"9ac063b0b88466183a50287af277c5ed40a8e238", GitTreeState:"clean", BuildDate:"2024-04-19T22:03:51Z", GoVersion:"go1.21.7 (Red Hat 1.21.7-1.el9) X:strictfipsruntime", Compiler:"gc", Platform:"linux/amd64"}

always

1) Use following isc to do mirror2mirror for v2:
cat config.yaml
kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
mirror:
  platform:
    channels:
      - name: stable-4.15
  additionalImages: 
    - name: registry.redhat.io/ubi8/ubi:latest
    - name: registry.redhat.io/ubi8/ubi-minimal:latest
  operators:
    - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.14
      packages:
      - name: 3scale-operator
    - catalog: oci:///app1/ibm-catalog
      targetTag: "v14"
      targetCatalog: "zhouy/catalog"
    - catalog: oci:///app1/noo/redhat-operator-index
      packages:
        - name: cluster-kube-descheduler-operator
        - name: advanced-cluster-management

`oc-mirror --config config.yaml --v2 docker://xxx.com:5000/m2m  --workspace file:///app1/0416/clid20/`

2) generate pruning plan for delete phase using --generate
cat config-delete.yaml 
apiVersion: mirror.openshift.io/v1alpha2
kind: DeleteImageSetConfiguration
delete:
  platform:
    channels:
      - name: stable-4.15
  additionalImages: 
    - name: registry.redhat.io/ubi8/ubi:latest
    - name: registry.redhat.io/ubi8/ubi-minimal:latest
  operators:
    - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.14
      packages:
      - name: 3scale-operator
    - catalog: oci:///app1/ibm-catalog
      targetTag: "v14"
      targetCatalog: "zhouy/catalog"
    - catalog: oci:///app1/noo/redhat-operator-index
      packages:
        - name: cluster-kube-descheduler-operator
        - name: advanced-cluster-management


`oc-mirror delete --config config-delete.yaml --workspace file://clid20 --v2 --generate  docker://xxx.com:5000/m2m`

2) Many errors for generate command: 

2024/04/22 10:02:29  [ERROR]  : reading manifest d8e94620237da97e1b65dac4fb616d21d13e2fea08c9385145a02ad3fbd59d88 in localhost:55000/3scale-amp2/3scale-rhel7-operator-metadata: manifest unknown image : map[]
2024/04/22 10:02:29  [ERROR]  : [delete-images] reading manifest d8e94620237da97e1b65dac4fb616d21d13e2fea08c9385145a02ad3fbd59d88 in localhost:55000/3scale-amp2/3scale-rhel7-operator-metadata: manifest unknown
2024/04/22 10:02:29  [ERROR]  : reading manifest 4f72f049436af1a940833c61b075d84ad5910c7bb2df2a8de99618995c067dfe in localhost:55000/3scale-amp2/3scale-rhel7-operator: manifest unknown image : map[]
2024/04/22 10:02:29  [ERROR]  : [delete-images] reading manifest 4f72f049436af1a940833c61b075d84ad5910c7bb2df2a8de99618995c067dfe in localhost:55000/3scale-amp2/3scale-rhel7-operator: manifest unknown
2024/04/22 10:02:29  [ERROR]  : reading manifest 4f72f049436af1a940833c61b075d84ad5910c7bb2df2a8de99618995c067dfe in localhost:55000/3scale-amp2/3scale-rhel7-operator: manifest unknown image : map[]
2024/04/22 10:02:29  [ERROR]  : [delete-images] reading manifest 4f72f049436af1a940833c61b075d84ad5910c7bb2df2a8de99618995c067dfe in localhost:55000/3scale-amp2/3scale-rhel7-operator: manifest unknown
2024/04/22 10:02:29  [ERROR]  : reading manifest 68b310ed3cfd65db893ba015ef1d5442365201c0ced006c1915e90edb99933ea in localhost:55000/3scale-amp2/apicast-gateway-rhel8: manifest unknown image : map[]
2024/04/22 10:02:29  [ERROR]  : [delete-images] reading manifest 68b310ed3cfd65db893ba015ef1d5442365201c0ced006c1915e90edb99933ea in localhost:55000/3scale-amp2/apicast-gateway-rhel8: manifest unknown
2024/04/22 10:02:29  [ERROR]  : reading manifest 2b8525c55cfbd5b5d66b50868ebd8fe6f468b10715653d047cdae25fa28e5983 in localhost:55000/3scale-amp2/backend-rhel8: manifest unknown image : map[]
2024/04/22 10:02:29  [ERROR]  : [delete-images] reading manifest 2b8525c55cfbd5b5d66b50868ebd8fe6f468b10715653d047cdae25fa28e5983 in localhost:55000/3scale-amp2/backend-rhel8: manifest unknown
2024/04/22 10:02:29  [ERROR]  : reading manifest 97e6355fcfadf7fea1f30cc8bbf833c8a518655cef4d63051df29fbcde2c1f00 in localhost:55000/3scale-amp2/memcached-rhel7: manifest unknown image : map[]

2) no error