ArgumentOutOfRangeException when loading DOC with SfRichTextBoxAdv

        private async Task ShowContent()

        {

            var byteContent = Encoding.UTF8.GetBytes(this.Model.WordContent);

            File.WriteAllBytes("D:/Temp/test.doc", byteContent);

            using (var ms = new MemoryStream(byteContent))

            {

                await this.documentEditor.LoadAsync(ms, FormatType.Doc);

            }

        }

An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll

Additional information: Index was out of range. Must be non-negative and less than the size of the collection.

   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)

   at Syncfusion.Windows.Controls.RichTextBoxAdv.ParagraphAdv.Relayout(LayoutViewer viewer, SectionAdv section)

   at Syncfusion.Windows.Controls.RichTextBoxAdv.ParagraphAdv.Relayout(Int32 startIndex)

   at Syncfusion.Windows.Controls.RichTextBoxAdv.CompositeNode.<>c__DisplayClass5.<ClearUnlinkedFields>b__1()

   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

   at System.Windows.Threading.DispatcherOperation.InvokeImpl()

   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Windows.Threading.DispatcherOperation.Invoke()

   at System.Windows.Threading.Dispatcher.ProcessQueue()

   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)

   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)

   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)

   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)

   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)

   at System.Windows.Application.RunDispatcher(Object ignore)

   at System.Windows.Application.RunInternal(Window window)

   at System.Windows.Application.Run(Window window)

   at System.Windows.Application.Run()

   at BlueCPA.PdfEditor.App.Main() in D:\Outsource\C#\WPF\BlueCPA.PdfEditor\BlueCPA.PdfEditor\obj\Debug\App.g.cs:line 0

   at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Threading.ThreadHelper.ThreadStart()