Getting 'ClusterManagementAddOn CR has not been deleted' error after upgrading ACM to 2.11.x version

Issue

• Getting the ClusterManagementAddOn has not been deleted error message in the multiclusterhub-operator pod logs after upgrading ACM to 2.11.2:

  2024-09-04T23:46:13.664436122Z 2024-09-04T23:46:13.664Z INFO    reconcile       Deleting the ClusterManagementAddOn CR  {"name": "iam-policy-controller"}
  2024-09-04T23:46:13.682324842Z 2024-09-04T23:46:13.682Z ERROR   Reconciler error        {"controller": "multiclusterhub", "controllerGroup": "operator.open-cluster-management.io", "controllerKind": "MultiClusterHub", "MultiClusterHub": {"name":"multiclusterhub","namespace":"open-cluster-management"}, "namespace": "open-cluster-management", "name": "multiclusterhub", "reconcileID": "1ff076f0-e4ed-45aa-96de-fa83e46c8e47", "error": "ClusterManagementAddOn CR has not been deleted"}
  

• When trying to display the application tab in ACM web console, an "Oh no! Something went wrong" error appears.

• Getting the ClusterManagementAddOn has not been deleted error message in the multiclusterhub-operator pod logs after upgrading ACM to 2.13.2:

  2024-09-04T23:46:13.664436122Z 2024-09-04T23:46:13.664Z INFO    reconcile       Deleting the ClusterManagementAddOn CR  {"name": "iam-policy-controller"}
  2024-09-04T23:46:13.682324842Z 2024-09-04T23:46:13.682Z ERROR   Reconciler error        {"controller": "multiclusterhub", "controllerGroup": "operator.open-cluster-management.io", "controllerKind": "MultiClusterHub", "MultiClusterHub": {"name":"multiclusterhub","namespace":"open-cluster-management"}, "namespace": "open-cluster-management", "name": "multiclusterhub", "reconcileID": "1ff076f0-e4ed-45aa-96de-fa83e46c8e47", "error": "ClusterManagementAddOn CR has not been deleted"}
  

• after updating RHACM the multiclusterhub-operator contains errors regarding the deletion of iam-policy-controller (or other deprecated component as per the release notes of RHACM)