The following exception occurs during page navigation, when the ListView has a DataTemplateSelector for its items:

Exception: {System.ArgumentException: Value does not fall within the expected range.}
    Handled: false
    Message: "System.ArgumentException: An item with the same key has already been added. Key: Group 0\r\n   at System.ThrowHelper.ThrowAddingDuplicateWithKeyArgumentException(Object key)\r\n   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)\r\n   at Telerik.UI.Xaml.Controls.Data.ListView.Model.BaseLayoutStrategy.RecycleLocally()\r\n   at Telerik.UI.Xaml.Controls.Data.ListView.Model.BaseLayoutStrategy.MeasureContent(RadSize availableSize, Double offset, Double bufferScale)"