From Exception Dialog:
System.InvalidOperationException
  HResult=0x80131509
  Message=Cyclic reference found while evaluating the Style property on element 'DataViewer.Views.VerticalCursor'.
  Source=PresentationFramework
  StackTrace:
   at System.Windows.FrameworkElement.UpdateStyleProperty()


Call Stack:
>	PresentationFramework.dll!System.Windows.FrameworkElement.UpdateStyleProperty()	Unknown
 	PresentationFramework.dll!System.Windows.TreeWalkHelper.InvalidateOnTreeChange(System.Windows.FrameworkElement fe, System.Windows.FrameworkContentElement fce, System.Windows.DependencyObject parent, bool isAddOperation)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.ChangeLogicalParent(System.Windows.DependencyObject newParent)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.AddLogicalChild(object child)	Unknown
 	PresentationFramework.dll!System.Windows.Controls.UIElementCollection.AddInternal(System.Windows.UIElement element)	Unknown
 	SciChart.Core.dll!SciChart.Core.Extensions.PanelExtensions.SafeAddChild(System.Windows.Controls.Panel panel, object child, int index)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.Update(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> xCoordinateCalculator, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> yCoordinateCalculator)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.TryUpdate(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> xCalc, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> yCalc)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.Refresh()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.ResumeUpdates(SciChart.Core.Framework.IUpdateSuspender updateSuspender)	Unknown
 	SciChart.Core.dll!SciChart.Core.Framework.UpdateSuspender.Dispose()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.LineAnnotationWithLabelsBase.whk()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.LineAnnotationWithLabelsBase.OnXAxisIdChanged()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.hsv(System.Windows.DependencyObject bnb, System.Windows.DependencyPropertyChangedEventArgs bnc)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs args)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex entryIndex, System.Windows.DependencyProperty dp, System.Windows.PropertyMetadata metadata, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType)	Unknown
 	PresentationFramework.dll!System.Windows.StyleHelper.ApplyStyleOrTemplateValue(MS.Internal.FrameworkObject fo, System.Windows.DependencyProperty dp)	Unknown
 	PresentationFramework.dll!System.Windows.StyleHelper.InvalidateContainerDependents(System.Windows.DependencyObject container, ref MS.Utility.FrugalStructList<System.Windows.ContainerDependent> exclusionContainerDependents, ref MS.Utility.FrugalStructList<System.Windows.ContainerDependent> oldContainerDependents, ref MS.Utility.FrugalStructList<System.Windows.ContainerDependent> newContainerDependents)	Unknown
 	PresentationFramework.dll!System.Windows.StyleHelper.DoStyleInvalidations(System.Windows.FrameworkElement fe, System.Windows.FrameworkContentElement fce, System.Windows.Style oldStyle, System.Windows.Style newStyle)	Unknown
 	PresentationFramework.dll!System.Windows.StyleHelper.UpdateStyleCache(System.Windows.FrameworkElement fe, System.Windows.FrameworkContentElement fce, System.Windows.Style oldStyle, System.Windows.Style newStyle, ref System.Windows.Style styleCache)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.OnStyleChanged(System.Windows.DependencyObject d, System.Windows.DependencyPropertyChangedEventArgs e)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs args)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex entryIndex, System.Windows.DependencyProperty dp, System.Windows.PropertyMetadata metadata, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType)	Unknown
 	WindowsBase.dll!System.Windows.DependencyObject.InvalidateProperty(System.Windows.DependencyProperty dp, bool preserveCurrentValue)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.UpdateStyleProperty()	Unknown
 	PresentationFramework.dll!System.Windows.TreeWalkHelper.InvalidateOnTreeChange(System.Windows.FrameworkElement fe, System.Windows.FrameworkContentElement fce, System.Windows.DependencyObject parent, bool isAddOperation)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.ChangeLogicalParent(System.Windows.DependencyObject newParent)	Unknown
 	PresentationFramework.dll!System.Windows.FrameworkElement.AddLogicalChild(object child)	Unknown
 	PresentationFramework.dll!System.Windows.Controls.UIElementCollection.AddInternal(System.Windows.UIElement element)	Unknown
 	SciChart.Core.dll!SciChart.Core.Extensions.PanelExtensions.SafeAddChild(System.Windows.Controls.Panel panel, object child, int index)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.Update(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> xCoordinateCalculator, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> yCoordinateCalculator)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.TryUpdate(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> xCalc, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double> yCalc)	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.Refresh()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.AnnotationBase.ResumeUpdates(SciChart.Core.Framework.IUpdateSuspender updateSuspender)	Unknown
 	SciChart.Core.dll!SciChart.Core.Framework.UpdateSuspender.Dispose()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.LineAnnotationWithLabelsBase.whk()	Unknown
 	SciChart.Charting.dll!SciChart.Charting.Visuals.Annotations.LineAnnotationWithLabelsBase.OnYAxesCollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs args)	Unknown
 	WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback, object args, int numArgs)	Unknown
 	WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.TryCatchWhen(object source, System.Delegate callback, object args, int numArgs, System.Delegate catchHandler)	Unknown
 	WindowsBase.dll!System.Windows.Threading.DispatcherOperation.InvokeImpl()	Unknown
 	WindowsBase.dll!MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(object obj)	Unknown
 	mscorlib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx)	Unknown
 	mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx)	Unknown
 	mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)	Unknown
 	WindowsBase.dll!MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext executionContext, System.Threading.ContextCallback callback, object state)	Unknown
 	WindowsBase.dll!System.Windows.Threading.DispatcherOperation.Invoke()	Unknown
 	WindowsBase.dll!System.Windows.Threading.Dispatcher.ProcessQueue()	Unknown
 	WindowsBase.dll!System.Windows.Threading.Dispatcher.WndProcHook(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam, ref bool handled)	Unknown
 	WindowsBase.dll!MS.Win32.HwndWrapper.WndProc(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam, ref bool handled)	Unknown
 	WindowsBase.dll!MS.Win32.HwndSubclass.DispatcherCallbackOperation(object o)	Unknown
 	WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback, object args, int numArgs)	Unknown
 	WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.TryCatchWhen(object source, System.Delegate callback, object args, int numArgs, System.Delegate catchHandler)	Unknown
 	WindowsBase.dll!System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority priority, System.TimeSpan timeout, System.Delegate method, object args, int numArgs)	Unknown
 	WindowsBase.dll!MS.Win32.HwndSubclass.SubclassWndProc(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam)	Unknown



Press Continue and the next exception happens which more of a call stack in the Exception dialog:

System.InvalidOperationException
  HResult=0x80131509
  Message=Cyclic reference found while evaluating the Style property on element 'DataViewer.Views.VerticalCursor'.
  Source=PresentationFramework
  StackTrace:
   at System.Windows.FrameworkElement.UpdateStyleProperty()

  This exception was originally thrown at this call stack:
    System.Windows.FrameworkElement.UpdateStyleProperty()
    System.Windows.TreeWalkHelper.InvalidateOnTreeChange(System.Windows.FrameworkElement, System.Windows.FrameworkContentElement, System.Windows.DependencyObject, bool)
    System.Windows.FrameworkElement.ChangeLogicalParent(System.Windows.DependencyObject)
    System.Windows.FrameworkElement.AddLogicalChild(object)
    System.Windows.Controls.UIElementCollection.AddInternal(System.Windows.UIElement)
    SciChart.Core.Extensions.PanelExtensions.SafeAddChild(System.Windows.Controls.Panel, object, int)
    SciChart.Charting.Visuals.Annotations.AnnotationBase.Update(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double>, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double>)
    SciChart.Charting.Visuals.Annotations.AnnotationBase.TryUpdate(SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double>, SciChart.Charting.Numerics.CoordinateCalculators.ICoordinateCalculator<double>)
    SciChart.Charting.Visuals.Annotations.AnnotationBase.Refresh()
    SciChart.Charting.Visuals.Annotations.AnnotationBase.ResumeUpdates(SciChart.Core.Framework.IUpdateSuspender)
    ...
    [Call Stack Truncated]