LSO after EHP6 don't display formatted text

After upgrade to EHP6, all the HTML tags (<b> <p> etc.) we use to clearly present LSO Course related content (i.e. description etc.) via our Portal are no longer being interpreted by the browser. Most the formatting options available with the SAP standard text editors (such as Bold, Paragraph or Underline) seem to be disabled for LSO objects. I read the note 1806018 (<br> tag) and it appear that SAP must work harder to a new correction... Please, comment and if you have some hints, provide me!

Thank you.