The "Edit disciplines" field of the EDIT link at the right side of the "About me" section is the only link that is not functioning. Would you mind please providing to me a way to change my Disciplines?
On the about me section of your research gate profile, there's an edit icon by the right hand side, once you click on it, it'll show you five different editable sections viz: edit introduction, edit languages, edit disciplines, edit skills and expertise. So, you'll choose anyone you wish to edit, and then you'll remove whichever you're not interested in. That's all!