I'm trying to use ScrollToHorizontalOffsetWithAnimation and ScrollToVerticalOffsetWithAnimation, and it works, but when the animation is completed the ScrollViewer returns to the {0, 0} position.

This is my code. As you can see, its very simple:
private async void ScrollTo(double x, double y)
{

scrollViewer.ScrollToHorizontalOffsetWithAnimation(x);
scrollViewer.ScrollToVerticalOffsetWithAnimation(y);

}
I tried using only one animation, but the result is the same.

Is this only happening to me?
Do anyone know how to solve this strange behavior?

Im using RTM.

Thanks!

        scrollViewer.ScrollToHorizontalOffsetWithAnimation(r.NextDouble() * (scrollViewer.ExtentWidth - scrollViewer.ViewportWidth));
        scrollViewer.ScrollToVerticalOffsetWithAnimation(r.NextDouble() * (scrollViewer.ExtentHeight - scrollViewer.ViewportHeight));