Appearance of Child Them

Hi,

I’m using a child theme, works fine, except of displaying in the Appearance, Themes window: there it shows an empty image.

My style.css has:

/*
 Theme Name:   Twenty Fourteen Child
 Description:  Twenty Fourteen Child Theme
 Template:     twentyfourteen
 Version:      1.0
 Text Domain:  twenty-fourteen-child
*/

My functions.php has:

<?php

/*
 Theme Name: Twenty Fourteen Child
 Template:   twentyfourteen
*/

add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
function theme_enqueue_styles() {
	wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );
	wp_enqueue_style( 'child-style', get_stylesheet_uri(), array( 'parent-style' ) );
}

?>

I read a lot about it elsewehere on the forum, but found no solution.
Any suggestions?
Regards and thanks, Coen