Cannot save new Level

We cannot save a new level. We try to create, say Silver level. It says "Membership Level added" but never shows. We are on WP 3.12, latest Membership version, just downloaded.

We know the drill...disabled all plugins (including muplugins), uninstalled plugin, reinstalled plugin, changed theme to twentyten, etc. Still cannot add a new level.

Any ideas? Appreciate the help.