Tabs Navigation not working properly

Hello, I have started a simple tabs application and I implemented Login page also. Login page in not included in Tabs page. I set the root page to Login page in app.component.ts.

When login is successful I redirect to Tabs page, using this.navCtrl.setRoot(TabsPage), the page shows but my tab navigation is out of sync, i.e. the tabs are not highlighted properly.

can you insert screens to better understand the problem?