rook: Ceph "Cluster utilization" chart no longer working on dashboard after v18.2.0 upgrade

Is this a bug report or feature request?

• Bug Report

Deviation from expected behavior: When navigating to the homepage/dashboard in the Ceph Dashboard UI, the “Cluster utilization” chart is not longer functional. Charts consistently act as if they have no data.

Expected behavior: Dashboard chart loads and displays current values based on platform metrics.

How to reproduce it (minimal and precise):

While on the latest version of the Rook operator (deployed via helm), upgrade Ceph from v17 --> v18.2.0. No additional settings changes made, except image update.

File(s) to submit: Dashboard screenshot:

• Cluster CR (custom resource), typically called cluster.yaml, if necessary

spec:
  cephVersion:
    allowUnsupported: false
    image: quay.io/ceph/ceph:v18.2.0
  cleanupPolicy:
    allowUninstallWithVolumes: false
    confirmation: ''
    sanitizeDisks:
      dataSource: zero
      iteration: 1
      method: quick
  continueUpgradeAfterChecksEvenIfNotHealthy: false
  crashCollector:
    disable: false
  dashboard:
    enabled: true
    port: 8443
    ssl: false
  dataDirHostPath: /var/lib/rook
  disruptionManagement:
    managePodBudgets: true
    osdMaintenanceTimeout: 30
    pgHealthCheckTimeout: 0
  external: {}
  healthCheck:
    daemonHealth:
      mon:
        disabled: false
        interval: 45s
      osd:
        disabled: false
        interval: 60s
      status:
        disabled: false
        interval: 60s
    livenessProbe:
      mgr:
        disabled: false
      mon:
        disabled: false
      osd:
        disabled: false
    startupProbe:
      mgr:
        disabled: false
      mon:
        disabled: false
      osd:
        disabled: false
  logCollector:
    enabled: true
    maxLogSize: 500M
    periodicity: daily
  mgr:
    allowMultiplePerNode: false
    count: 2
    modules:
      - enabled: true
        name: pg_autoscaler
  mon:
    allowMultiplePerNode: false
    count: 3
  monitoring:
    enabled: false
  network:
    connections:
      compression:
        enabled: false
      encryption:
        enabled: false
  priorityClassNames:
    mgr: system-cluster-critical
    mon: system-node-critical
    osd: system-node-critical
  removeOSDsIfOutAndSafeToRemove: false
  security:
    kms: {}
  skipUpgradeChecks: false
  storage:
    onlyApplyOSDPlacement: false
    useAllDevices: true
    useAllNodes: true
  waitTimeoutForHealthyOSDInMinutes: 10

Logs to submit: No known evidence of error in operator or manager logs.

Cluster Status to submit: n/a

Environment:

• OS (e.g. from /etc/os-release): Ubuntu 22.04
• Kernel (e.g. uname -a): Linux rke2-ceph-0 5.15.0-1041-kvm #46-Ubuntu SMP Fri Aug 25 07:39:11 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
• Cloud provider or hardware configuration: Proxmox VMs
• Rook version (use rook version inside of a Rook Pod): v1.12.3
• Storage backend version (e.g. for ceph do ceph -v): v18.2.0
• Kubernetes version (use kubectl version): v1.26.7
• Kubernetes cluster type (e.g. Tectonic, GKE, OpenShift): rke2
• Storage backend status (e.g. for Ceph use ceph health in the Rook Ceph toolbox):