ngSwitch doesn't work with Video

I have the following, and when I load this page, the Segment at the top flashes for a second and then disappears. Can anyone advice why? Commenting out the Video doesn’t help. Thanks!

<div [ngSwitch]="videoEdit">
    <ion-list *ngSwitchCase="'trim'">
      <ion-item>
        <video #editVideo src="{{videoPath}}"></video>
        <ion-range></ion-range>
      </ion-item>
    </ion-list>

    <ion-list *ngSwitchCase="'thumbnail'">
      <ion-item>
        <h2>thumbnal example...</h2>
      </ion-item>
    </ion-list>
  </div>