When the users move the image (evaluated as a result of the field) using the document selection, the field is removed from the document and the image is duplicated.

When a continuous section break is inserted on a page containing an image and with a watermark applied, the watermark is shown on top of the other document elements. The issue is observed only on the page with the section break.

Implement generating of an image and inserting it into the clipboard on copy/cut so it can be pasted in MS Paint or other tools for image editing.

Attaching to the CommandExecuting event of RadRichTextBox and handling the copy command can be used as a workaround:
CopyCommand command = e.Command as CopyCommand;
  
if (command != null)
{
    ImageInline image = this.radRichTextBox.Document.Selection.GetSelectedSingleInline() as ImageInline;
    if (image != null)
    {
        Clipboard.SetImage(image.ImageSource);
        e.Cancel = true;
    }
}

Inserting a page break inside a table is currently not supported (the feature request is logged at https://feedback.telerik.com/Project/143/Feedback/Details/211108). Therefore, the Page Break button inside the Insert tab of the ribbon should be disabled when the caret is positioned inside a table.

Workaround: Track the position of the caret and when the latter goes into a table, set the Enabled property of InsertPageBreakCommand to false.

Expose an API allowing easy customization of the layer.

Currently, working with bookmarks and cross references in the headers and footers of a document is not supported.

Currently, when the users perform replace, and there are no more matches which should be replaced, the "The searched text was not found" message is shown. Add functionality to say that there are no more matches instead of saying that the text is not found.

When an RTF document contains table inside table in the header or in the footer, the document cannot be imported due to NullReferenceException. In the case of RadRichTextBox the exception is handled, but it's not when RtfFormatProvider is used directly.

The bug is regression in 2016 R3.

When dragged from the toolbox, the wizard adds only <telerik:RadRichTextBox /> tag and does not generate XAML for the Ribbon UI. 

Workaround: On second attempt, the UI of the ribbon is generated as expected. Note: The generation is not working in Visual Studio 2017, even on the second attempt.

Available in R1 2018 Official Release version.

When the document contains headings with heading styles associated with numbering styles (numbered headings), and TOC field is inserted and/or updated in the document, the TOC items should contain the numbering which comes from the style. Instead, on update the numbering is lost and only heading text is included in the field result.

Implement advanced find dialog similar to MS Word which provides an option to search for paragraph end marker, tab character, and others.

InvalidOperationException is thrown in the IsInNonEditableRange() method of RadDocument when assigning a document to RadRichTextBox, which is created through the model and contains several read-only ranges.

Workaround: Call MeasureAndArrangeInDefaulSize().

When continuous section break is copied from RichTextBox and pasted to MS Word, it is inserted as Next Page break.

When section break between tables is deleted, the document structure gets corrupted and as a result, NullReferenceException is thrown after performing undo of the deletion operation. 
As a workaround PageBreak could be used instead of Section break.

This causes some problems if the hyperlink is edited and the document is exported and imported again.
Workaround:
private void RadRichTextBox1_DocumentChanged(object sender, EventArgs e)
{
    var document = radRichTextEditor1.Document;

    var fields = document.EnumerateChildrenOfType<FieldRangeStart>();

    foreach (FieldRangeStart item in fields)
    {
        radRichTextEditor1.DeleteAnnotationRange(item);
    }
}

This element specifies a set of table properties which shall be applied to the contents of this row in place of the table properties specified in the tblPr element.

In RichTextBox, only the background (the fill attribute) is supported and the val and color attributes (determining the pattern and its color) are not respected while importing.

When the Chinese IME is used with Microsoft Pinyin input, FatalExecutionEngineError is thrown in the FocusCaret() method of DocumentWebLayoutPresenter. The exception is not reproducible in Paged layout mode.

If the spell checking dialog is opened when the caret is at the end of the paragraph, the spell check stops after the fist span in the paragraph after which there is a punctuation (e.g. comma or a dot).

However, if the caret is at the beginning of the paragraph (on the first misspelled word for example), everything works as expected.

When there is a Section with columns layout and it is separated with continuous section break, inserting column break in some of the columns doesn't get into account when the calculations of the available height are made.