BuddyPress.org

The forum line was removed because it was not implemented, it may reappear if theme support for a global forum is added.

You can easily add this back into a plugin:

function add_forum_link() {

echo '<a href="' . site_url('forums') . '">Forums</a>';

}

add_action( 'bp_nav_items', 'add_forum_link' );

I’ll investigate the settings not showing, the changes made should not affect that.