While clicking to position the caret at the beginning of a paragraph, the caret is jumping to the previous document position and returning back to the desired one. 

Fix available in LIB Version 2017.2.627.

The parent of an already removed span cannot be found and a NullReferenceException is thrown while performing Undo. Also, multiple asserts are failing in Debug mode. The stack trace is:

UnhandledException: Object reference not set to an instance of an object.
UnhandledException:   at Telerik.Windows.Documents.Layout.LayoutElement.SetParent(LayoutElement newParent)
   at Telerik.Windows.Documents.Layout.LayoutBox.EnsureParent()
   at Telerik.Windows.Documents.Layout.LayoutBox.get_Parent()
   at Telerik.Windows.Documents.Layout.LayoutBox.get_ValidParent()
   at Telerik.Windows.Documents.WordPositionHandler.GetParentHandler()
   at Telerik.Windows.Documents.DocumentPosition.GetCurrentSectionBox()
   at Telerik.Windows.Documents.UI.DocumentPrintLayoutPresenter.GetCurrentPage()
   at Telerik.Windows.Documents.UI.DocumentPrintLayoutPresenter.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

The caret (cursor) is drawn over letters. This is unpleasant, especially with small font sizes. The issue is even more noticeable when the zoom factor is bigger than 100%.

Available in LIB Version 2018.1.312.

Workaround is to enumerate the fields and update them separately.
            foreach (var field in this.radRichTextBox.Document.EnumerateChildrenOfType<FieldRangeStart>())
            {
                this.radRichTextBox.UpdateField(field);
            }

"http://" prefix is automatically added by the Insert Hyperlink Dialog when the provided URI is to local path or mapped drive, e.g. "Z:\temp".

Workaround 1: Set HyperlinkPattern to something that matches file paths, e.g.:
(this.radRichTextBox.InsertHyperlinkDialog as RadInsertHyperlinkDialog).HyperlinkPattern = ".*";

Workaround 2: Insert such paths with the "file://" prefix.

Decimal tab stops are aligning numbers to the thousands separator (,) instead of to the decimal point (.).
The fix will be available in the next official release Q3 2014

The fix will be available in our official release Q1 2015.

When calling a ChangeAllFieldsDisplayMode(FieldDisplayMode.Result) on a document containing a multiline document variable ("First Line\vSecond Line\vThird Line") leads to wrongly updated span box text.

The result is: "Third Line¬Third Line¬Third Line"

Focus events (GotFocus, LostFocus) are raised inconsistently for RadRichTextBox, due to the internal translation of the focus to the Caret.

Scenarios:

1. Clicking inside the control, when the focus is already inside the control, triggers LostFocus, GotFocus, LostFocus, GotFocus events.

2. Switching internal editors (headers/footers) raises GotFocus and LostFocus.

3. If the control is inherited and OnGotFocus/OnLostFocus are overriden, they are never called (despite OnGotFocus one time in the beginning

The behavior is problematic, as this events are useful for custom validation scenarios.

1. Create a hyperlink before a section break.2. Remove this hyperlink by clicking on the context menu.

The fix is available in our latest official release 2014 Q3 SP1.

The exception is thrown by the SystemFontsManager internal class from Telerik.Windows.Documents.Core, so it can observed when using RadPdfViewer, RadRichTextBox, RadSpreadsheet.

The reason is not clear, posssible causes are:
- Corrupted fonts after upgrade from Windows XP
- Enabling of Block untrusted fonts feature (https://docs.microsoft.com/en-us/windows/threat-protection/block-untrusted-fonts-in-enterprise )

The call stack is as follows:

System.TypeInitializationException: The type initializer for 'Telerik.Windows.Documents.Core.Fonts.SystemFontsManager' threw an exception. ---> System.IO.FileNotFoundException: Unable to find the specified file.
   at MS.Internal.Text.TextInterface.Native.Util.ConvertHresultToException(Int32 hr)
   at MS.Internal.Text.TextInterface.FontList.get_Item(UInt32 A_0)
   at MS.Internal.Text.TextInterface.FontList.FontsEnumerator.get_Current()
   at MS.Internal.FontFace.TypefaceCollection.Enumerator.get_Current()
   at System.Windows.Media.Fonts.TypefaceCollection.<GetEnumerator>d__11.MoveNext()
   at Telerik.Windows.Documents.Core.Fonts.SystemFontsManager..cctor()

Workaround: 

Manually delete all registry key values in Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Fonts pointing to files outside of the Fonts folder.

Undoing changes to words wrapped in annotation ranges throw InvalidCastExceptions as AnnotationRangeStarts are casted to AnnotationRangeEnd.

Steps to reproduce:
1. Add a bookmark to a word
2. Add a bookmark to the following word in the document
3. Use the find dialog to highlight those two words
4. Bold the text
5. Press Ctrl+Z to undo
Observed: Repeated InvalidCastException dialogs

Fix available in LIB Version 2018.1.430.

When a symbol is inserted, the font family of RichTextBox is set to the symbol's font family.


Workaround: Create a custom InsertSymbolDialog. The font family could be persisted in the Show() method of the new dialog and reset when the dialog is closing. Attached is a sample project demonstrating the workaround.

UpdateAllFields method causes StackOverlfowException when:
- there are two TOC fields in the document with specific location (no paragraphs between the two fields)
- when merge fields containing new lines ('\r\n') are updated.

UpdatField method causes StackOverlfowException in the IntervalTree class when:
- A TOC field is updated and the field contains field separator (<w:fldChar w:fldCharType="separate"/>) in its definition. The exception is reproducible when there are section breaks before the TOC. 

Fix available in LIB Version 2017.2.627.

The fix is available in our LIB release (v. 2015.3.1123).

If a table style is applied to a table, and then document is exported/imported to RTF, properties of the style are applied as local properties. Subsequent edits of the style (or changing the style of the table) seems to not work, as the local properties are with higher priority.

The following parts are with hard coded strings and cannot be localized:

 - Insert Caption (InsertCaptionDialog): Combo boxes for label and separator
 - Paragraph Properties (ParagraphPropertiesDialog): Units of spacing and indentation values (pt)
 - Tab Stops Properties (TabStopsPropertiesDialog): The text of the tabStopsToBeClearedTextBloc
 - Cross references: reference types Figure and Table
 - TOC  and TOF: Heading and Figure, Caption labels
 - Document Ruler: Tooltips
 - FormattingColorPicker: The "No Color" string

Available in R1 2018 SP2 Release Version.

The following controls are not faded out when the RadRichTextBox has its IsReadOnly property set to true :

- the labels inside Options and Position RadRibbonGroups in the Headers & Footers tab;

-table styles gallery;

alignment of table cell (743884);

When in read-only range:

- Bookmark;