Ionic ion-segment not changed segment-activated

Ionic Framework ionic-v3
1

Hello guys!

Guys, I have a problem with my ion-segment. It does not change the class to segment-activeted after the click.

Screen with ion-segment
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Html code

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imagem 2.png1920×1080 81.4 KB

Ts Code
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imagem 3.png1920×1080 85.8 KB

But if you use detectChanges from the ChangeDetectorRef it works

<ion-segment [(ngModel)]="relationship" color="primary" (ionChange)="segmentChanged($event)">
    <ion-segment-button value="friends">
      Friends
    </ion-segment-button>
    <ion-segment-button value="enemies">
      Enemies
    </ion-segment-button>
  </ion-segment>


  segmentChanged(segmento){
    this.cf.detectChanges();
  }

But it should be working without needing to use the detectChanges.

Can someone help me?

Thank you!