How to apply transitions in ItemsView on reload in WinUI 3?

I have an ItemsView and the transition gets applied when loading the items by a ViewModel but when I reload the ViewModel, there is no transition.

<ItemsView x:Name="itemsView"
	Margin="0,20,0,0"
	Height="Auto"
	CornerRadius="3"
	HorizontalAlignment="Stretch"
	SelectionMode="None"
	VerticalAlignment="Top"  
 
	ItemsSource="{x:Bind BookViewModel.Books}">                    
	<ItemsView.ItemTemplate>
		<DataTemplate x:DataType="local:Book">
			<ItemContainer HorizontalAlignment="Stretch" Height="40" Background="#232323" x:Name="itemContainer"  Margin="0,0,20,0">
				<ItemContainer.Transitions>
					<TransitionCollection>
						<EntranceThemeTransition FromVerticalOffset="200" IsStaggeringEnabled="True"/>
					</TransitionCollection>    
				</ItemContainer.Transitions>
				
				<Grid Padding="5,5,5,0" x:Name="grid">
					<Grid.RowDefinitions>
						<RowDefinition Height="auto" />
						<RowDefinition Height="*"/>
					</Grid.RowDefinitions>
					<Grid.ColumnDefinitions>
						<ColumnDefinition></ColumnDefinition>
					</Grid.ColumnDefinitions>
					<StackPanel Orientation="Horizontal">
						<CheckBox Margin="10,0,-80,0" Width="0" MaxWidth="5"/>
						<Image Height="20" Width="20" Margin="0,0,10,0"  Source="{x:Bind Icon, Mode=OneWay}" />
						<TextBlock Text="{x:Bind Name, Mode=OneWay}" TextWrapping="Wrap" FontSize="14" VerticalAlignment="Center"/>
					</StackPanel>
				</Grid>
				
			</ItemContainer>
		</DataTemplate>
	</ItemsView.ItemTemplate>
</ItemsView>

I'm just reloading my ViewModel by the clear method which clears the bound ItemsView:

BookViewModel().Books().Clear();