When changing the Items of the legend - the legend flickers. The reason for this is that there is RelativeSource binding for the ContentTemplate of the LegendItemControl, and for the binding to work - the legend item control needs to be in the visual tree. And the binding kicks in after the legend item control is added to the visual tree. 

Workaround: 
Create an implicit style targeting the LegendItemControl and use a Setter as suggested below:
<telerik:RadLegend.Resources>
 <Style TargetType="telerik:LegendItemControl">
  <Setter Property="ContentTemplate" Value="{Binding ItemTemplate, RelativeSource={RelativeSource AncestorType=telerik:RadLegend}}" />

ElementName bindings are not resolved correctly for ItemMapping object when RadChart is placed inside TabControl.

CameraExtention doesn't work with late binding - Async data loading from WCF service.

When rendering Line3D with constant YValue the visuals do not appear as expected and a significant delay is observed.

If there is another Theme set to the Control, it is not applied correctly to the series and the axes.

Edit: Please use ChartView and implicit styling instead if possible.

The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.

Chart: bars too wide in strict mode. This is partially fixable by decreasing TicksDistance. Still, no fix when AxisX.Visibility is set to Collapsed.

Edit: The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.

ConvertDataUnitsToPhysical functionality should be able to return results relative to the entire chart, so that a user can place an object over it.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Having Series Mapping, a specific XCategory needs to be highlighted.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (use the LabelTemplateSelector of the axes).

Fixed in LIB version: 2014.2.0913

Range series style is applied according to X axis ticks.

Chart: X axis zoom is ignored when grouping.

This event should be fired even when the axis is collapsed.

Chart: X axis min value changes when moving the right slider handle

Chart: Add nearest points outside the zoom area to the graph.

Chart: AxisX.ActualMinValue is incorrect when zooming (AutoRange=false)