Render method not working

[avril-verhaeghen]

I'm having an issue with version 4.8.0. I initialised data of GtConfig with an empty array, insert data later within a Promise but still renders nothing, not even going in the render function (console log in it and doesn't log).

My code in the constructor:

this.gtConfig = {
      settings: [
        {
          objectKey: 'name',
          sort: 'asc',
          columnOrder: 0
        }, {
          objectKey: 'priority',
          sort: 'asc',
          columnOrder: 1
        }
      ],
      fields: [
        {
          name: 'Name',
          objectKey: 'name'
        }, {
          name: 'Prioriteit',
          objectKey: 'priority',
          render: () => 'hello'
        }
      ],
      data: []
    };

Then I trigger a "getData" method in ngOnInit

private _getData() {
    this.myService.getNames().then(data => {
      this.gtConfig.data = data['content'];
    });
  }

Data is array containing the objects for the table.

Anyone got some suggestions?

For info, I use the same exact method in another page of the same app and there it renders correctly.