Deploying vault on OCI gives sealtype shamir not ocikms

Deploying vault on OCI gives sealtype shamir not ocikms, vault HA is working and even we have checked autounseal which is working as expected when pod gets restarted. Below are my values

server:
    ha:
      enabled: true
      replicas: 2
      raft:
        enabled: true
        setNodeId: true
        config: |
          ui = true
          listener "tcp" {
            address = "[::]:8200"
            cluster_address = "[::]:8201"
            tls_disable = true
          }
          storage "raft" {
            path = "/vault/data"
            retry_join {
            leader_api_addr = "http://vault-0.vault-internal:8200"
            }
            retry_join {
            leader_api_addr = "http://vault-1.vault-internal:8200"
            }

     }
          service_registration "kubernetes" {}

          seal "ocikms" {
            key_id             = ""
            crypto_endpoint    = ""
            management_endpoint = ""
            tenancy            = ""
            user               = ""
            region             = ""
            fingerprint        = ""
            }

    dataStorage:
      storageClass: oci-bv

    auditStorage:
      enabled: true
      storageClass: oci-bv

    extraEnvironmentVars:
      VAULT_SEAL_TYPE: "ocikms"
      VAULT_OCIKMS_SEAL_KEY_ID: ""

 





Key                      Value
---                      -----
Recovery Seal Type       shamir
Initialized              true
Sealed                   false
Total Recovery Shares    5
Threshold                3
Version                  1.15.2
Build Date               
Storage Type             raft
Cluster Name             vault-cluster
Cluster ID               
HA Enabled               true
HA Cluster               https://vault-0.vault-internal:8201
HA Mode                  active
Active Since             
Raft Committed Index     60
Raft Applied Index       60

What could be an issue?