ColumnChart: Autorange is not working for one or two columns

Hello,

ColumnChart: Autorange is not working if XyDataSeries contains 1 or 2 items.

The SDK example -> 2D Charts -> Column Chart with little modifications (the complete code is attached):

    private void OnClick(object sender, RoutedEventArgs e)
    {
        using (this.sciChart.SuspendUpdates())
        {
            for (int i = 0; i < ARRAY_SIZE; i++)
            {
                var val = _rnd.Next(-100, 100);
                Debug.WriteLine(val);
                _dataSeries.Update(i, val);
            }
        }
        sciChart.ZoomExtents();
    }

If ARRAY_SIZE is 1; any value; after “click me” button pressed (may be needed to press few times to catch this)

If ARRAY_SIZE is 2; the values are [27, 55]

If ARRAY_SIZE is 3 or more – columns are displayed OK for any values.

If I use

AutoRange="Never" VisibleRange="-100, 100"

this example works OK.

Question: please let me know how to make the ColumnChart working properly for one or two columns and AutoRange=”Always”

Thanks!

-Egor