I can remove the picture from post editor. But then, there is only the small picture.
But when I post anything new, there is no problem any more.
I would like to remove the small picture from all my last 117 posts.
Do you understand what I mean?
I see what you mean. If I do as you suggest, I only have the small picture. But I want to have again only the big picture.
Yesterday I posted a new post and I did it as always and it is correct (Post Birthday wish). The older posts are uploaded with my old theme Big Brother (host: wordpress.com).
This bug started when changing the host and the theme (now Gateway).
Do you see what I mean?
I want to remove the little picture and leave only the big one.