Since 10.4.3 I have a strange habit in the User Tool.
Sometimes when I import a Text then comes the bold characters from the .html file normal and what is normal in the .html comes bold.
e.g. I have import a text all is normal, then I have in the .docx file change the headers, so that it comes good in the browser of the User Tool and then I had that comes the bold character normal and the normal bold.
One time over the full document, and one time in another some sections.