Currently in live data scenarios the TrackInfoControl does not update its content unless the mouse is moved. The track ball should get updated automatically when the DataPoints are modified.

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.

DateTimeContinuousAxis produces too many labels when zoom in to the max and then zoomed out with double clicking the slider. The result is different when zooming out while dragging the slider and when double clicking it.

The ToolTip's style is missing in the no xaml assemblies in Expression_Dark and Office2013 themes. A work-around is to manually include the tool tip's style (for example in the App.xaml).