Workaround:
One way to work around this is to set the plot mode of the axis to OnTicksPadded. 

The position of non-positive values cannot be determined when using a logarithmic axis (due to the nature of the logarithmic axis, non-positive values are undefined). Currently the chart displays such points as if the value of the point is 1, which is not correct. The chart should not display these values at all.

Make the StepLineSeries being able to plot a 'step' for a single point. Currently the StepLine series does not support drawing a single data point when it is in the beginning or the end of the ItemsSource. 

A NullReferenceException is thrown when the Strategy of the series is set


Available in LIB version: 2017.2.605

Implement series descriptor for the chart's range series


Will be available in Q1 2016 Release.

When there are no data points in the bar series, the chart fails to retrieve a color for the marker of the legend item. This can be worked around by modifying the item template of the legend item. In the new template the binding of the Fill of the marker, should include not just the MarkerFill but TargetNullValue:

<DataTemplate x:Key="legendItemContentTemplate1">
 <StackPanel Orientation="Horizontal">
  <Path Fill="{Binding MarkerFill, TargetNullValue=#9B25B1}" Width="12" Height="12">
   <Path.Data>
    <Binding Path="ActualMarkerGeometry" 
      RelativeSource="{RelativeSource AncestorType=telerik:LegendItemControl}" />
   </Path.Data>
  </Path>
  <TextBlock Margin="2" Text="{Binding Title}" />
 </StackPanel>
</DataTemplate>


Will be available in Q2 2016 Release.

In scenarios where a series is removed and after that an axis1 is removed, the other axis2 is rendered incorrectly if a series is added and then axis1 is added back.

The Open and Close properties of the OhlcSeries' data points are not updated at runtime in a data binding scenario when you update the properties from the view model. The same applies also for the CandlestickSeries.



Available in LIB version: 2016.2.606

The data points are not rendered when the series' axis is set at runtime through a DataTrigger in the series' style. 

Note: The data points are rendered when the chart is resized or zoomed.

Workaround:
Change the resource type in the DataTrigger that changes the axis - instead of DynamicResource, use StaticResource. 

<telerik:CategoricalSeriesDescriptor.Style>
    <Style TargetType="telerik:LineSeries">
        <Style.Triggers>
            <DataTrigger Binding="{Binding Path=Axis}" Value="Left">
                <Setter Property="VerticalAxis" Value="{StaticResource AxisLeft}"/>
            </DataTrigger>
            <DataTrigger Binding="{Binding Path=Axis}" Value="Right">
                <Setter Property="VerticalAxis" Value="{StaticResource AxisRight}"/>
            </DataTrigger>
        </Style.Triggers>
    </Style>
</telerik:CategoricalSeriesDescriptor.Style>

Enable the TrackBallInfo to be vertically aligned (e.g. the bottom of the chart).

Provide a way that the CrossHair behavior looks like theTrackBall's one so that the Crosshair follows just the chart's series. Something like a TrackBall with the horizontal and vertical line of a Crosshair.

The fix is available in LIB Version 2015.1.0420.

The fix is available in LIB Version 2015.1.0406.

An exception is thrown in design time when a RadCartesianChart is inside a RadExpander and no-xaml binaries are used in combination with VisualStudio 2010.

Available in LIB version: 2015.1.1603

When the values of the data points have great values and the axis has a very small manual range, the Path element does not render correctly and is at times not visible at all.

Workaround:
A possible way to resolve this is to use the Direct2DRenderOptions. The different render modes use a completely different rendering logic.
<telerik:LineSeries.RenderOptions>
 <telerik:Direct2DRenderOptions />
</telerik:LineSeries.RenderOptions>

An exception occurs in the VS designer when a RadPieChart is placed in a RadDocking's RadPane.

The fix is available in Q1 2015 SP Release.

When there is defined a ChartPanAndZoomBehavior and the axes of the chart are switched at run-time, the orientation of the PanZoomBar elements it is not changed.

Workaround:
Get the PanZoomBar element and set its Orientation property.

private void TrySetOrientation(CartesianAxis axis, Orientation orientation)
{
    var panZoomBar = Telerik.Windows.Controls.ChildrenOfTypeExtensions.FindChildByType<PanZoomBar>(axis);
    if (panZoomBar != null)
    {
        panZoomBar.Orientation = orientation;
    }
}

private void SwapAxes()
{           
    // Swapping code here

    this.Dispatcher.BeginInvoke((Action)(() =>
    {
        this.TrySetOrientation(this.chart.HorizontalAxis, Orientation.Horizontal);
        this.TrySetOrientation(this.chart.VerticalAxis, Orientation.Vertical);
    }));
}

Available in LIB Version 2015.2.907.

This can easily be resolved by using a Dispatcher.BeginInvoke to delay the adding of the element. 

The fix is available in LIB Version: 2014.3.1402.