HTML Compatibility

Is there the possibility to add HTML compatibility for the note?

It seems it may have previously been a feature but as of version 2.1.5 all HTML code is removed from the note as soon as the page/post/CPT is updated. On the plugin page there is a screenshot from the note display meta box (#editor-note-view) where the meta box label is red and the HTML code saved in the note itself is properly displayed: Link.