This has been driving me insane! I almost bought the premium wordfence. Glad I saw this first. Deleted WF and the problem went away. There are other options out there with less aggravation.
My problem was similar. It seemed to have happened out of nowhere. I don’t know what I did to cause it but I got frustrated trying to fix it. I was running TinyMCE Advanced plugin and disabled it to no avail. Finally I just decided to abandon TinyMCE altogether and replace it with Dean’s FCKEditor For WordPress plugin instead. It’s a little different but quite nice once you start working with it. Maybe I’ll find a fix for TinyMCE later but for now I have to get BACK TO WORK!
Hope it helps you get back to work too!
