Hi Krikor,
I do have the same issue on a site I am currently building (therefore not public yet) but I did discover this.
Usually when you create an article in J!, the <p></p> tags are wrapped around the content (till you enter, then you get new <p></p> wrapper for the next paragraph.
When adding a {gallery}image_folder{/gallery} in an article, this is not wrapped but taken out of the existing <p></p> wrapping. That doesn't allow the gallery to be styled using the editor (center text button) creating a warpping like <p style="text-align: center;">{gallery}image_folder{/gallery}</p> even though it is stored correctly in the database. It also looks ok when I check source, though the closing </p> shows in red.
odd thing, when I count opening and closing <p> tags they match. When I take out the {gallery}image_folder{/gallery} and leave just the <p> tags in the source of the article it shows ok again... </p> is black.
When I check the console (F12) the browser interprets as <p style="text-align: center;"></p><ul.......the lot..../ul><p></p>
Something is going wrong with the paragraph...
