ILM Policy Update from Kibana Never Applies

I have recently enabled ILM policy per documentation and it is working according to the policies and indexes created at the time of implementation.

However, if I make a change (in this case to the max_size attribute) through the user interface in Kibana, the changes never take effect.

For example I have modified the following policy which shows the change to 1mb max_size and the version number increment:

   {
  "kemp_ilm_policy" : {
    "version" : 2,
    "modified_date" : "2019-10-25T19:31:13.848Z",
    "policy" : {
      "phases" : {
        "hot" : {
          "min_age" : "0ms",
          "actions" : {
            "rollover" : {
              "max_size" : "1mb"
            }
          }
        },
        "delete" : {
          "min_age" : "30d",
          "actions" : {
            "delete" : { }
          }

But the index itself shows the old policy version and associated max_size value

  {
  "indices" : {
    "kemp-000001" : {
      "index" : "kemp-000001",
      "managed" : true,
      "policy" : "kemp_ilm_policy",
      "lifecycle_date_millis" : 1571863064866,
      "phase" : "hot",
      "phase_time_millis" : 1571863065016,
      "action" : "rollover",
      "action_time_millis" : 1571863600699,
      "step" : "check-rollover-ready",
      "step_time_millis" : 1571863600699,
      "phase_execution" : {
        "policy" : "kemp_ilm_policy",
        "phase_definition" : {
          "min_age" : "0ms",
          "actions" : {
            "rollover" : {
              "max_size" : "1gb"
            }
          }
        },
        "version" : 1,
        "modified_date_in_millis" : 1571863042457

What am I missing?

Anyone? Do I need to include more information?