OnNavigatedTo in Prism doesn't trigger from one of pages

I faced with the strange behavior of OnNavigatedTo in Prism. It works always on Android, but on iOS it not works for one of the pages. See code:

private void OnSpecialtyTapped()        {            _navigationService.NavigateAsync($"{nameof(SpecialtyFilterPage)}", useModalNavigation: false);        }private void OnLocationTapped()        {            _navigationService.NavigateAsync($"{nameof(PlacesFilterPage)}", useModalNavigation: false);        }private void OnTakeChosenSpecialties()        {            var parameters = new NavigationParameters            {                //{"ChosenSpecialtiesIds", CheckedSpecialties.Select(s => s.Id).ToList()}            };            _navigationService.GoBackAsync(parameters);        }private void OnTakeChosenPlaces()        {            var parameters = new NavigationParameters            {                //{"ChosenPlaces", CheckedPlaces.Select( p => new Models.PlaceParameter {Id=p.Id, Type=Convert.ToString(p.Type)}).ToList()}            };            _navigationService.GoBackAsync(parameters);        }public void OnNavigatedTo(NavigationParameters parameters)        {            if ( parameters.ContainsKey("ChosenSpecialtiesIds") )            {                var chosenSpecialtiestIds = parameters["ChosenSpecialtiesIds"] as List<string>;                if ( chosenSpecialtiestIds == null ) return;                _filter.Services.Clear();                foreach ( var specialtiestId in chosenSpecialtiestIds )                {                    _filter.Services.Add(new ServiceParameter { Id = specialtiestId });                }            }            else if ( parameters.ContainsKey("ChosenPlaces") )            {                var chosenPlaces = parameters["ChosenPlaces"] as List<PlaceParameter>;                if ( chosenPlaces == null ) return;                _filter.Places.Clear();                _filter.Places = chosenPlaces;            }        }

It works with Specialty and doesn't work on iOS with Places. I am using Prism 6.2.0 and Xamarin.Forms 2.3.3.193. I can't use newer version because of some bug.