BP - Fun Mail to All not working

I'm not sure if this is a theme error or what, but the check box on the compose message page that says "mail to all users" doesn't do anything. It will go through the whole compose process as if it is actually doing something, but no one gets any messages and it doesn't add the message to my "sent" folder.

Any insights?? I really need to be able to send to all people OR am I missing a plugin or something?

Thanks!