I just changed a blog to use a “page” as my “home page” (as described above) and noticed that the meta tags were blank. I contacted the author twice. After the second email, I got a short response that said
“Thank you for using our All in One SEO Pack plugin for WordPress. Unfortunately, we’re unable to provide complimentary support for isolated issues some people have with our free plugins. You may try the WordPress support forums to see if you can resolve your individual problem.”
That is why I am here on the forum. It is obviously a bug with the software. It is pretty poor on their part to respond like this!