Workers KV Request Analytics api is returning incomplete time intervals

Calling Query Workers KV Request Analytics [1] for either Requests or Stored Data is returning time intervals for only the first 10 minutes of each hour. It used to return each dekaminute for each hour.

Not sure when it regressed, I haven’t checked it in a while. Can someone at Cloudflare take a look?

Example request:

https://api.cloudflare.com/client/v4/accounts/<account-id>/storage/analytics?limit=10000&since=2021-04-18T12%3A00%3A00Z&until=2021-04-18T23%3A59%3A59.999Z&metrics=requests%2CwriteKiB%2CreadKiB&dimensions=accountId%2CrequestType%2CresponseCode&sort=%2BaccountId%2C%2BrequestType%2C%2BresponseCode

Example response:

{
  "errors": [],
  "messages": [],
  "result": {
    "data": [
      ...
    ],
    "data_lag": 0,
    "max": {
      ...
    },
    "min": {
      ...
    },
    "query": {
      "dimensions": [
        "accountId",
        "requestType",
        "responseCode"
      ],
      "limit": 10000,
      "metrics": [
        "requests",
        "writeKiB",
        "readKiB"
      ],
      "since": "2021-04-18T12:00:00Z",
      "sort": [
        {
          "Desc": false,
          "Id": "accountId"
        },
        {
          "Desc": false,
          "Id": "requestType"
        },
        {
          "Desc": false,
          "Id": "responseCode"
        }
      ],
      "time_delta": "dekaminute",
      "until": "2021-04-18T23:59:59.999Z"
    },
    "rows": 8,
    "time_intervals": [
      [
        "2021-04-18T12:00:00Z",
        "2021-04-18T12:09:59Z"
      ],
      [
        "2021-04-18T13:00:00Z",
        "2021-04-18T13:09:59Z"
      ],
      [
        "2021-04-18T14:00:00Z",
        "2021-04-18T14:09:59Z"
      ],
      [
        "2021-04-18T15:00:00Z",
        "2021-04-18T15:09:59Z"
      ],
      [
        "2021-04-18T16:00:00Z",
        "2021-04-18T16:09:59Z"
      ],
      [
        "2021-04-18T17:00:00Z",
        "2021-04-18T17:09:59Z"
      ]
    ],
    "totals": {
      ...
    }
  },
  "success": true
}

Update: Appears to happen with “time_delta”: “minute” and “dekaminute” queries. “time_delta”: “day” and “hour” queries seem fine.

Thanks,
- John

[1] Cloudflare API v4 Documentation