ILM is not working

[hadesy]

I am using ELK stack 7.4.1, I have an ILM policy set but looks like its not working. The maximum index size I set is 50GB.

GET /log-test/_ilm/explain
{
  "indices" : {
    "log-test-2019.10.31-000001" : {
      "index" : "log-test-2019.10.31-000001",
      "managed" : true,
      "policy" : "log-dev",
      "lifecycle_date_millis" : 1572491201040,
      "age" : "3.96d",
      "phase" : "hot",
      "phase_time_millis" : 1572491201110,
      "action" : "rollover",
      "action_time_millis" : 1572491203419,
      "step" : "check-rollover-ready",
      "step_time_millis" : 1572491203419,
      "phase_execution" : {
        "policy" : "log-dev",
        "phase_definition" : {
          "min_age" : "0ms",
          "actions" : {
            "rollover" : {
              "max_size" : "50gb"
            },
            "set_priority" : {
              "priority" : 100
            }
          }
        },
        "version" : 2,
        "modified_date_in_millis" : 1572490889698
      }
    }
  }
}

GET https://kibana:5601/api/index_management/indices

{
    "health":"green",
    "status":"open",
    "name":"log-test-2019.10.31-000001",
    "uuid":"wwsy9oZcT_mBaxBCQvhLdQ",
    "primary":"1",
    "replica":"1",
    "documents":"188174271",
    "size":"82.2gb",
    "isFrozen":false,
    "aliases":[
        "log-test"
    ],
    "ilm":{
        "index":"log-test-2019.10.31-000001",
        "managed":true,
        "policy":"log-dev",
        "lifecycle_date_millis":1572491201040,
        "age":"3.97d",
        "phase":"hot",
        "phase_time_millis":1572491201110,
        "action":"rollover",
        "action_time_millis":1572491203419,
        "step":"check-rollover-ready",
        "step_time_millis":1572491203419,
        "phase_execution":{
            "policy":"log-dev",
            "phase_definition":{
                "min_age":"0ms",
                "actions":{
                    "rollover":{
                        "max_size":"50gb"
                    },
                    "set_priority":{
                        "priority":100
                    }
                }
            },
            "version":2,
            "modified_date_in_millis":1572490889698
        }
    },
    "isRollupIndex":false,
    "isFollowerIndex":false
}