DataTriggers do not work on UWP when compiling for RELEASE using .Net Native Toolchain

Has anyone else experienced this?

Using a simple DataTrigger like so:

                        <Grid.Triggers>
                            <DataTrigger TargetType="Grid" Binding="{Binding Selected}" Value="True">
                                <Setter Property="BackgroundColor" Value="{StaticResource SelectedListItemColour}"/>
                            </DataTrigger>
                            <DataTrigger TargetType="Grid" Binding="{Binding Selected}" Value="False">
                                <Setter Property="BackgroundColor" Value="{StaticResource ContentGridColour}"/>
                            </DataTrigger>
                        </Grid.Triggers>

works in DEBUG

But if you compile for RELEASE using .Net Native Toolchain this datatrigger no longer works?