Ionic2 Virtual Scroll displaying no elements from the data

[ahsanayaz]

<ion-list 
    [virtualScroll]="devices" 
    approxItemHeight="108px"
    class="list-entities">
    <div>
      Devices data is here, see device[0] below
      {{devices[0] | json}}
    </div>
    <ion-item *virtualItem="let device">
      {{device | json}}
    </ion-item>

  </ion-list>

Using "ionic-angular": "^3.0.1"

See the view:

Any suggestions? This is working perfectly fine with *ngFor.