I'm actually not able to change my email settings currently. It forced my real email to "not public" mode and my facebook email to "public" and the buttons are unresponsive. I also can't "remove this from my timeline" either.
Update: A few hard refreshes later, the buttons started to work.
Same happened to me. I think their email settings servers/subsystem is just getting hammered right now as more and more news articles are being written about this.
Update: A few hard refreshes later, the buttons started to work.