Ion-select fetch data on click

Im trying to load data on a ion-select when the user clicks on it but it show empty on firts click, this is my approach but failing

<ion-select [(ngModel)]="gFilter.gMarca" (ionChange)="getMarcas()" (ionSelect)="getFamilia(wm.value)" #wm>
  <ion-option *ngFor="let marca of marcas" [value]="marca" >{{ marca.Descripcion }}</ion-option>

  public getMarcas() {
    this.loading = true;
    this.provider.getVinMarcas().then(data => {
      if (data != null) {
        this.marcas = data;
        this.loading = false;
      } else {
        //Trigger error message
    }).catch(error => {
      this.loading = false;


Any help would be greatly appreciated.

The documentation on ion select tells ypu that ionSelect event does not exist but u should use ionChange, which u also use withhout passing value. And u also use ngmodel which can be competing with the previous