I believe the powers that be mentioned that it's a glitch and that they're looking into it.
Nah, the membergroup limits were changed so some members were demoted, but there is also glitch with the new changes.
The change on membergroup should demoted OP from "Member" to "Jr. Member".
But, due to the glitch, OP is now stuck as "Newbie".
To know the details, feel free to click the links posted in my above post.