Old Index is not deleted as per ILM

[Rakhshunda_Noorein_J (Rakhshunda Noorein Jawaid)]

Hello,

I have created an ILM for my .monitoring-es-7-* indices

PUT _ilm/policy/Elasticsearch_monitoring_test_policy
{
  "policy": {
    "phases": {
      "hot": {
        "min_age": "0ms",
        "actions": {
          "set_priority": {
            "priority": 100
          }
        }
      },
      "delete": {
        "min_age": "3d",
        "actions": {
          "delete": {
            "delete_searchable_snapshot": true
          }
        }
      }
    }
  }
}

I have not enables Rollover on ILM bcoz no alias is used. Just the hot phase and delete phase.

Then I attached the ILM to system legacy template .monitoring-es template. So when a monitoring index is generated ILM is attached to it.
below sharing the screenshot of my monitoring index.

this index was created on 25-09-23 but after 3 days that is today this index should be deleted as per ILM. But it is not deleted.