Query 1 & Relevant missing hash metadata

Relavant metadata stored for the given hash:
 "hits": [
      {
        "_index": "k_index.6",
        "_type": "_doc",
        "_id": "Unique id removed",
        "_score": 0,
        "_source": {
          "kmeta:updateTime": "2020-09-06T11:18:43.000Z",
          "kmeta:fileHash": "fffffce6050d2fa50019d5679239e22d"
        }
      },
      {
        "_index": "k_index.6",
        "_type": "_doc",
        "_id": "Unique id removed",
        "_score": 0,
        "_source": {
          "kmeta:updateTime": "2020-09-06T12:01:11.000Z",
          "kmeta:fileHash": "fffffce6050d2fa50019d5679239e22d"
        }
      },
      {
        "_index": "k_index.6",
        "_type": "_doc",
        "_id": "Unique id removed",
        "_score": 0,
        "_source": {
          "kmeta:updateTime": "2020-09-06T13:23:38.000Z",
          "kmeta:fileHash": "fffffce6050d2fa50019d5679239e22d"
        }
      }
    ]



Query 1 returning one of the missing hashes:
GET On: /_search?request_cache=false
{
  "from": 0,
  "size": 0,
  "query": {
    "bool": {
      "filter": [
        {
          "term": {
            "kmeta:fileHash": {
              "value": "fffffce6050d2fa50019d5679239e22d",
              "boost": 1
            }
          }
        },
        {
          "range": {
            "kmeta:updateTime": {
              "from": "2020-09-06T11:10:43.000Z",
              "to": "2020-09-06T13:24:43.000Z",
              "include_lower": true,
              "include_upper": false,
              "time_zone": "Europe/Berlin",
              "boost": 1
            }
          }
        }
      ]
    }
  },
  "aggregations": {
    "kmeta:fileHash": {
      "terms": {
         "include": {
               "partition": 0,
               "num_partitions": 1
        },
        "field": "kmeta:fileHash",
        "size": 1000,
        "shard_size": 1000,
        "min_doc_count": 2,
        "shard_min_doc_count": 1
      }
    }
  }
}


Result of Query 1

{
  "took": 1140,
  "timed_out": false,
  "_shards": {
    "total": 8,
    "successful": 8,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": {
      "value": 3,
      "relation": "eq"
    },
    "max_score": null,
    "hits": [

    ]
  },
  "aggregations": {
    "kmeta:fileHash": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "fffffce6050d2fa50019d5679239e22d",
          "doc_count": 3
        }
      ]
    }
  }
}