Ionic 5 tab subpage transition

Hi. in my app with tabs.
One of the tabs is the CalendarPage. Every page I open inside CalendarPage (ex: CalendarDetailPage. The route for subpages are in main app-routing.module.ts file) it opens without tab and have a nice page transition.

If I move the CalendarDetailPage route to CalendarPage, the link open and keep displayng the tabs BUT three’s no page transition.

How Can I open a sublink keep displaying the tabs AND keep the page transition?