Due to a bug in an older Divi version (somewhere around 3.0.7x), Divi wrote the HTML of the rendered Blurb into the the WYSIWYG Body field. Since 1.8.5, the WYSIWYG Body field is activated by default and in 1.10, the old, single line Body field will be removed. In the meantime, the content of both Body fields will be rendered in the Blurb. If you see HTML in the content, simply open your Blurb and remove the text from the WYSIWYG Body field. If you still use the old single line Body field, move your text to the new WYSIWYG field.