Having multiple paragraphs that are formatted with color and font-size as inline styles, selecting them and applied font-size by using RealFontSize tool causes these issues:

1. Only first paragraph is properly decorated;
2. Second paragraph is stripped from any inline styles at all;
3. The next paragraphs stay without any changes applied.


Possible workaround is to disable the ConvertFontToSpan filter:

RadEditor1.DisableFilter(EditorFilters.ConvertFontToSpan);