The exception is reproduced only if the Visibility is initially bound to a property that returns Collapsed.

This can be reproduce with the chart indicators that derives from LineIndicatorBase. For example, MovingAverageIndicator or MomentumIndicator.

To resolve this you can bind the Opacity property instead of Visibility.

An InvalidCastException is thrown in the Fill/Background property binding in the series' DefaultVisualStyle when the RenderOptions is set to Bitmap or Direct2D.

This reproduces when the axis' SmartLabelMode is enabled. For example, set to SmartStep. 

See the attached video.

As a workaround you can disable the smart label mode and manually calculate the range when zooming. You can use its Minimum, Maximum, MajorStep and MajorStepUnit properties.

Please add a feature for justifying the bar series chart so that bar data points can be plotted with a "Left", "Right", or "Center" justification to chart ticks.

An image to describe a "Right" vs "Center" bar justification is provided.

You can observe the difference between the ChartView and an Excel Chart with the same data in the attached pictures.

The stroke property of the PaletteEntry is not respected.

Add a mechanism that allows the chart to process only the data within the viewport. This should improve the memory footprint and the performance of the chart in scenarios with big number of data points.

Convert ZIndex property of the series to dependency property

The RadCartesianChart's series allows you to provide a collection of primitive types (like List<int>) to its ItemsSource which will render a proper chart, as shown in the Create Data-Bound Chart article. 

Currently, this is not supported if you use the sampling feature of the chart (ChartDataSource). ChartDataSource can't work with collections with primitive types. Add support for this.

The series are not rendered as expected when using Direct2DRenderOptions and hiding labels (by setting the LabelInterval, SmartLabelsMode or via a different approach)

Chart is not exported properly when Margin is present.

Bar series with DateTimeContinuousAxis axis with no MajorStep specified. When you zoom the bars gets to big and does not stay within its tick boundaries.

When adding two BarSeries in code-behind, the second one is not aligned well on the horizontal DateTimeContiniousAxis. It starts from the beginning of the axis, but not the supposed DateTime.

Pan/zoom behavior should be configurable whether to execute its logic on right mouse button or left mouse button down.

Implement Label Fit Mode In the polar chart to avoid label overlapping.

CategoricalSeriesDescriptor.TypePath is not currently bindable. This means this has to point to a property on your DataSource that returns Telerik series types. This breaks the MVVM design model, as the DataSource points to the ViewModel, that should not contain any View specific types. Please provide a bindable alternative, such that a Converter can be applied to supply the View specific types.

Will be available in Q1 2016 Release.