So it appears that the data exists in the monitoring index, just not displayed in Kibana.
If I try to zoom on the blank timeframe in Kibana I get "Monitoring Request Failed. Unable to find the cluster in the selected time range. UUID: vd63AAWCTc6rZ1RiIRSK4g .  HTTP 404"
Here's a screenshot of the timeframe:
And here's the query and response
Query:
{
  "query": {
    "bool": {
      "filter": [
        {
          "term": {
            "cluster_uuid": "vd63AAWCTc6rZ1RiIRSK4g"
          }
        },
        {
          "range": {
            "timestamp": {
              "gte": "2019-12-17T03:48:00.080Z",
              "lte": "2019-12-17T03:49:00.080Z"
            }
          }
        }
      ]
    }
  },
  "aggs": {
    "check": {
      "date_histogram": {
        "field": "timestamp",
        "fixed_interval": "30s"
      },
      "aggs": {
        "metric": {
          "max": {
            "field": "indices_stats._all.total.search.query_total"
          }
        },
        "metric_deriv": {
          "derivative": {
            "buckets_path": "metric",
            "gap_policy": "skip",
            "unit": "1s"
          }
        }
      }
    }
  }
}
Response (truncated):
    {
        "took": 10,
        "timed_out": false,
        "_shards": {
            "total": 7,
            "successful": 7,
            "skipped": 0,
            "failed": 0
        },
        "hits": {
            "total": {
                "value": 222,
                "relation": "eq"
            },
            "max_score": 0.0,
            "hits": [
                {
                    "_index": ".monitoring-es-7-2019.12.17",
                    "_type": "_doc",
                    "_id": "FcP4EW8Byx4LD79xQ0Os",
                    "_score": 0.0,
                    "_source": {
                        "cluster_uuid": "vd63AAWCTc6rZ1RiIRSK4g",
                        "timestamp": "2019-12-17T03:48:00.543Z",
                        "interval_ms": 10000,
                        "type": "node_stats",
                        "source_node": {
                            "uuid": "5SmrUGH4SRuLDYLdrOt77g",
                            "host": "172.30.1.242",
                            "transport_address": "172.30.1.242:9300",
                            "ip": "172.30.1.242",
                            "name": "ip-172-30-1-242.ec2.internal",
                            "timestamp": "2019-12-17T03:48:00.543Z"
                        },
                        "node_stats": {
                            "node_id": "5SmrUGH4SRuLDYLdrOt77g",
                            "node_master": false,
                            "mlockall": false,
                            "indices": {
                                "docs": {
                                    "count": 26609220
                                },
                                "store": {
                                    "size_in_bytes": 49286464235
                                },
                                "indexing": {
                                    "index_total": 3303155,
                                    "index_time_in_millis": 1646136,
                                    "throttle_time_in_millis": 0
                                },
                                "search": {
                                    "query_total": 142097245,
                                    "query_time_in_millis": 855398284
                                },
                                "query_cache": {
                                    "memory_size_in_bytes": 32790152,
                                    "hit_count": 227876976,
                                    "miss_count": 249589745,
                                    "evictions": 20350234
                                },
                                "fielddata": {
                                    "memory_size_in_bytes": 0,
                                    "evictions": 0
                                },
                                "segments": {
                                    "count": 88,
                                    "memory_in_bytes": 11952968186,
                                    "terms_memory_in_bytes": 11943687306,
                                    "stored_fields_memory_in_bytes": 7562824,
                                    "term_vectors_memory_in_bytes": 0,
                                    "norms_memory_in_bytes": 54656,
                                    "points_memory_in_bytes": 978040,
                                    "doc_values_memory_in_bytes": 685360,
                                    "index_writer_memory_in_bytes": 849632,
                                    "version_map_memory_in_bytes": 748,
                                    "fixed_bit_set_memory_in_bytes": 132592
                                },
                                "request_cache": {
                                    "memory_size_in_bytes": 0,
                                    "evictions": 0,
                                    "hit_count": 30,
                                    "miss_count": 11390
                                }
                            },
                            "os": {
                                "cpu": {
                                    "load_average": {
                                        "1m": 0.2,
                                        "5m": 0.2,
                                        "15m": 1.11
                                    }
                                },
                                "cgroup": {
                                    "cpuacct": {
                                        "control_group": "/",
                                        "usage_nanos": 1407906507480565
                                    },
                                    "cpu": {
                                        "control_group": "/",
                                        "cfs_period_micros": 100000,
                                        "cfs_quota_micros": -1,
                                        "stat": {
                                            "number_of_elapsed_periods": 0,
                                            "number_of_times_throttled": 0,
                                            "time_throttled_nanos": 0
                                        }
                                    },
                                    "memory": {
                                        "control_group": "/",
                                        "limit_in_bytes": "9223372036854771712",
                                        "usage_in_bytes": "98930262016"
                                    }
                                }
                            },
                            "process": {
                                "open_file_descriptors": 898,
                                "max_file_descriptors": 65535,
                                "cpu": {
                                    "percent": 1
                                }
                            },
                            "jvm": {
                                "mem": {
                                    "heap_used_in_bytes": 19752021000,
                                    "heap_used_percent": 57,
                                    "heap_max_in_bytes": 34246361088
                                },
                                "gc": {
                                    "collectors": {
                                        "young": {
                                            "collection_count": 1582085,
                                            "collection_time_in_millis": 36134761
                                        },
                                        "old": {
                                            "collection_count": 33,
                                            "collection_time_in_millis": 6668
                                        }
                                    }
                                }
                            },
                            "thread_pool": {
                                "generic": {
                                    "threads": 20,
                                    "queue": 0,
                                    "rejected": 0
                                },
                                "get": {
                                    "threads": 1,
                                    "queue": 0,
                                    "rejected": 0
                                },
                                "management": {
                                    "threads": 5,
                                    "queue": 0,
                                    "rejected": 0
                                },
                                "search": {
                                    "threads": 25,
                                    "queue": 0,
                                    "rejected": 0
                                },
                                "watcher": {
                                    "threads": 0,
                                    "queue": 0,
                                    "rejected": 0
                                },
                                "write": {
                                    "threads": 16,
                                    "queue": 0,
                                    "rejected": 0
                                }
                            },
                            "fs": {
                                "total": {
                                    "total_in_bytes": 1056750854144,
                                    "free_in_bytes": 995028893696,
                                    "available_in_bytes": 951978315776
                                },
                                "io_stats": {
                                    "total": {
                                        "operations": 11420617,
                                        "read_operations": 444892,
                                        "write_operations": 10975725,
                                        "read_kilobytes": 16952040,
                                        "write_kilobytes": 290891716
                                    }
                                }
                            }
                        }
                    }
                },
                {
                    "_index": ".monitoring-es-7-2019.12.17",
                    "_type": "_doc",
                    "_id": "8x34EW8BQZsPnUc7RfgG",
                    "_score": 0.0,
                    "_source": {
                        "cluster_uuid": "vd63AAWCTc6rZ1RiIRSK4g",
                        "timestamp": "2019-12-17T03:48:00.875Z",
.
.
.
    "aggregations": {
        "check": {
            "buckets": [
                {
                    "key_as_string": "2019-12-17T03:48:00.000Z",
                    "key": 1576554480000,
                    "doc_count": 111,
                    "metric": {
                        "value": 3.96591825E8
                    }
                },
                {
                    "key_as_string": "2019-12-17T03:48:30.000Z",
                    "key": 1576554510000,
                    "doc_count": 111,
                    "metric": {
                        "value": 3.966284E8
                    },
                    "metric_deriv": {
                        "value": 36575.0,
                        "normalized_value": 1219.1666666666667
                    }
                }
            ]
        }
    }
}