In Qlik Sense, the Next Execution Column in the QMC is not updated for Reload Tasks Created, Updated, Etc. Via QRS API In Some Circumstances

When managing (creating, updating) reload tasks via the QRS API, the "Next Execution" column is not updated when triggered manually; it remains blank.
This occurs only in projects involving a high level of customization and number of other API calls, not in generic installations.

Environments:

• Qlik Sense Enterprise, Sept2017 initial release (IR) and higher

The operational was not set correctly for reload tasks managed via the API in very specific circumstances, and there weren't mechanisms preventing modification of this field by the API. This is considered an internal defect and not a documentation issue.

Fix:
In progress, QLIK-89516. Release that will contain the fix is not yet known.

Workaround:
When using the API, verify that the "operationals" value in the reload task is not null; this value should never be null as it is created by the Repository on task creation, managed by the Scheduler, and shouldn't be altered by API calls; if this occurs, verify if your project is attempting to modify this information or if this is otherwise occurring at an earlier step. Generally-speaking, if trying to update a task via a POST on /qrs/reloadtask/update, you can use the following endpoints to gather the required information and should never manage the operationals field via the API (this is managed by the Repository and Scheduler only).

• /qrs/reloadtask/{id}?privileges={appendPrivileges}
• /qrs/schemaevent/{id}?privileges={appendPrivileges}
• /qrs/compositeevent/{id}?privileges={appendPrivileges}

Here is a bad response from a GET on /qrs/reloadtask/{reload task id}; the operational is null, which indicates an error occurred at some point when managing the task via the API: 
 

{
  "task": {
    "id": "a75fc946-5896-4e0f-97fa-aca27cf15d15",
    "createdDate": "2018-07-05T07:46:46.31Z",
    "modifiedDate": "2018-07-05T11:25:46.31Z",
    "modifiedByUserName": "...",
    "customProperties": [],
    "app": {
      "id": "aa1a1c53-f8a7-4c7f-b8e3-aff0def44112",
      "name": "aaa",
      "appId": "",
      "publishTime": "1753-01-01T00:00:00Z",
      "published": false,
      "stream": null,
      "savedInProductVersion": "12.108.2",
      "migrationHash": "98d482c3f964d...048ea6eb221",
      "availabilityStatus": 0,
      "privileges": null
        },
        "isManuallyTriggered": false,
    "operational": null,
    "name": "Manually triggered reload of aaa",
    "taskType": 0,
    "enabled": true,
    "taskSessionTimeout": 1440,
    "maxRetries": 0,
    "tags": [],
    "privileges": null,
    "schemaPath": "ReloadTask"
  },
  "schemaEvents":[
    {...},
    "name": "Hourly",
    "enabled": true,
    "eventType": 0,
    "reloadTask": {...},
    "userSyncTask": null,
    "externalProgramTask": null,
    "privileges": null,
    "schemaPath": "SchemaEvent"}
  ]
}

Here is a good example GET on /qrs/reloadtask/{reload task id} that has the correct information:

{
  "task": {
    "id": "a75fc946-5896-4e0f-97fa-aca27cf15d15",
    "createdDate": "2018-07-05T07:46:46.31Z",
    "modifiedDate": "2018-07-05T11:25:46.31Z",
    "modifiedByUserName": "...",
    "customProperties": [],
    "app": {
      "id": "aa1a1c53-f8a7-4c7f-b8e3-aff0def44112",
      "name": "aaa",
      "appId": "",
      "publishTime": "1753-01-01T00:00:00Z",
      "published": false,
      "stream": null,
      "savedInProductVersion": "12.108.2",
      "migrationHash": "98d482c3f964d...48ea6eb221",
      "availabilityStatus": 0,
      "privileges": null
        },
        "isManuallyTriggered": false,
    "operational": {
    "id": "ac819b69-2216-4c10-9ad5-d14ba5d1af67",
    "lastExecutionResult": {
      "id": "24923b36-8b6b-4a57-bc57-2725313de644",
      "executingNodeName": "...",
      "status": 7,
      "startTime": "2018-07-05T07:46:46.474Z",
      "stopTime": "2018-07-05T07:46:48.551Z",
      "duration": 2077,
      "fileReferenceID": "bbfc722e-8e6f-40f4-b315-85d9aab61f3c",
      "scriptLogAvailable": false,
      "details": [
        {
          "id": "d579d9ff-68e9-476d-b87c-b9f6aaa5d64b",
          "detailsType": 2,
          "message": "Changing task state to Triggered",
          "detailCreatedDate": "2018-07-05T07:46:46.505Z",
          "privileges": null
        },
        {
          "id": "eb54ce89-c8f8-48b6-ab3c-903a0ff1d498",
          "detailsType": 2,
          "message": "Trying to start task. Sending task to slave scheduler ...",
          "detailCreatedDate": "2018-07-05T07:46:47.087Z",
          "privileges": null
        },
        {
          "id": "31dbcc17-8fba-4fbf-9687-0f4ffe00a761",
          "detailsType": 2,
          "message": "Changing task state from Triggered to Started",
          "detailCreatedDate": "2018-07-05T07:46:47.671Z",
          "privileges": null
        },
        {
          "id": "797cbb58-81c7-47b9-8e1e-b9a556bd080c",
          "detailsType": 2,
          "message": "Reference to scriptlog added",
          "detailCreatedDate": "2018-07-05T07:46:48.478Z",
          "privileges": null
        },
        {
          "id": "d132954f-d931-4ee7-b345-1a3bd148deba",
          "detailsType": 2,
          "message": "Changing task state from Started to FinishedSuccess",
          "detailCreatedDate": "2018-07-05T07:46:48.76Z",
          "privileges": null
        }
      ],
      "privileges": null
    },
    "nextExecution": "2018-07-05T07:55:22Z",
    "privileges": null
  },
    "name": "Manually triggered reload of aaa",
    "taskType": 0,
    "enabled": true,
    "taskSessionTimeout": 1440,
    "maxRetries": 0,
    "tags": [],
    "privileges": null,
    "schemaPath": "ReloadTask"
  },
  "schemaEvents":[
    {...},
    "name": "Hourly",
    "enabled": true,
    "eventType": 0,
    "reloadTask": {...},
    "userSyncTask": null,
    "externalProgramTask": null,
    "privileges": null,
    "schemaPath": "SchemaEvent"}
  ]
}

Information provided on this defect is given as is at the time of documenting.  For up to date information, please review the most recent Release Notes, or contact support at support.qlik.com with the ID QLIK-89516 for reference.