When the users select a table using the thumb provided by the TableAdorner, the table is selected but the Table Tools contextual tab in RadRichTextBoxRibbonUI is not activated.

Workaround: Attach to SelectionChanged and move the caret position to the first position of the table when the selection range is only one and is of type Table. Sample code is attached.

Some of the methods in RadDocumentEditor/RadRichTextBox call RadDocument.EnsureDocumentMeasuredAndArranged(), but some don't, for example:

- InsertAnnotationRange
- InsertLine
- ChangeAllFieldsDisplayMode

This causes exceptions or incorrect behavior what layout is not performed on the document.

Workaround: Call EnsureDocumentMeasuredAndArranged before the problematic methods.

If the empty run is defined with start-tag and end-tag the import is correct:

<w:p>
  <w:r></w:r>
</w:p>

However, if it is defined with empty-element tag, its parent Paragraph is not imported:

<w:p>
 <w:r/>
</w:p>

Fix available in R2 2018 SP1 release version.

The image adorner in is not shown in NetCore/6/7/8 when ApplicationTheme is not set (XAML only).

Workaround:

Explicitly set the theme:

 StyleManager.ApplicationTheme = new Office2016Theme();

When the document uses a font that cannot be found on the machine, it is substituted for another font. What should happen is to fall back to another font for the visualization, but to preserve the original font in the model.

Partial workaround: for HTML import, the font can be preserved by subscribing to the FontSubstituting event:
provider.ImportSettings.FontSubstituting += ImportSettings_FontSubstituting;
private void ImportSettings_FontSubstituting(object sender, FontSubstitutingEventArgs e)
{
      e.SubstitutionFontFamily = new FontFamily(e.OriginalFontName);
}

When a merged cell contains more than one entire column, the caret is in the merged cell and you chose the option to delete the current column, the action is supposed to delete all the columns in the merged cell. What happens instead is that only the first column is deleted and the merged cell remains.

Workaround:

            TableCell tableCell = this.radRichTextBox.Document.CaretPosition.GetCurrentInline().Parent.Parent as TableCell;

            if(tableCell == null)
            {
                return;
            }

            int columnSpan = tableCell.ColumnSpan;

            this.radRichTextBox.Document.History.BeginUndoGroup();

            for (int i = 0; i < columnSpan; i++)
            {
                this.radRichTextBox.DeleteTableColumn();
            }

            this.radRichTextBox.Document.History.EndUndoGroup("Delete Column");

RichTextBox: The RepeatButtonStyle is not merged in the RichTextBox Xaml file when declaring the styles on a window level.

Workaround: Add the dictionaries to the App.xaml file instead of the Window file.

If nested comments are present in the document, the end users cannot delete the nested one. If they put the caret inside the inner comment, or even inside the balloon associated with the inner comment, and press "Delete Comment", the most outermost comment is deleted instead of the current one.