Inconsistance (and bug?) in API - "Datasets - Get Refresh History In Group"

Via web interfave -- status "In progress"

Via api -- status "Unknown" and missing(!) endTime attribute
{

      "id": 2764425337,
      "refreshType": "OnDemand",
      "startTime": "2019-11-22T12:38:02.067Z",
      "status": "Unknown",
      "requestId": "4ec74f57-3a79-53e1-acee-34b9ecec2207"

      "id": 2697968141,
      "refreshType": "OnDemand",
      "startTime": "2019-11-06T13:01:17.167Z",
      "endTime": "2019-11-06T13:29:55.317Z",
      "status": "Completed",
      "requestId": "e027da75-a160-77f7-b59f-0b29ca6efed3"