Resolvi parcialmente, apaguei isso e funcionou normal,
$wp_customize->add_section( 'featured_content', array(
'title' => esc_html__( 'Featured Content', 'branchy' ),
'description' => sprintf( wp_kses( __( 'Use a <a href="%1$s">tag</a> to feature your posts. If no posts match the tag, <a href="%2$s">sticky posts</a> will be displayed instead.', 'branchy' )), admin_url( '/edit.php?tag=featured' ), admin_url( '/edit.php?show_sticky=1' ) ),
'priority' => 130,
) );