I just installed the new verson of WordPress and everything goes ok until I tried to edit a post. I want to insert an image, so I did it but when I tried to save or save an continue, a pop up windows shows and asks me if I want to go out of the current page and that will cause that every change is lost. I push OK button and the post shows no change on it. Any idea on why is this happened.
Thank you for any help.