I’m using the Sydney theme (1.3.5) with Wordpress 4.7.2.
If I create a new page and use html in it (bold, italic, lists), whether in Text Editor oder via Visual Editor, it works. Everything is shown correctly on the page, during edit and after.
If I create a new blog article everything is shown right in the editor again, but after editing, every html markup is gone. The article is just the plain text.
Any idea what is the cause for that problem?