Thank you for your help. 
 
	I changed the 2 lines in the file Text list with box.xaml 
	 
	<Image x:Name="BoxFrontImage" Aspect="AspectFit" Margin="0,0,0,0" /> 
	<Image x:Name="BoxFrontImage2" Aspect="AspectFit" Margin="0,0,0,0" />
 
	by
 
	<Image Source="{Binding ActiveGame.BoxFrontImage}" />
 
	There is no longer the fading animation but the image takes a little time to appear (100ms)