Polylang not translating added front page section

I added a fifth front page section in front-page.php (using a child theme), and it looks all right except that Polylang won’t translate it. It shows the default language in all different languages.

Do you think I need to change something in the theme code or should I check with Polylang?

The code I changed is the following

$num_sections = apply_filters( 'twentyseventeen_front_page_sections', 5);
			global $twentyseventeencounter;