Entry Meta Style Example 1 - Comment link not showing

Hello everyone,

I'm a new GeneratePress user and this is my first post.

I've followed the instructions found in the documentation here to change the style of the entry meta for single posts (I chose the example 1).

However the comment link doesn't appear. Is there another code I need to add that I'm missing? I'm using disqus with the Disqus Conditional Load plugin.

This is the current php code I have (I tweaked it to display the last update date):

add_filter( 'generate_post_author_output', function() {
    return sprintf( ' <span class="byline">%1$s</span>',
        sprintf( '<span class="author vcard" itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author">%4$s<a href="%1$s" title="%2$s" rel="author"><span class="author-name" itemprop="name">%3$s</span></a></span>',
            esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
            esc_attr( sprintf( __( 'View all posts by %s', 'generatepress' ), get_the_author() ) ),
            esc_html( get_the_author() ),
            get_avatar( get_the_author_meta( 'ID' ) )
        )
    );
} );

add_filter( 'generate_header_entry_meta_items', function() {
    return array(
        'author',
        'comments-link',
        'date',
    );
} );

add_filter( 'generate_footer_entry_meta_items', function( $items ) {
    return array(
        'categories',
        'post-navigation',
    );
} );

// Filter post date to display latest date
add_filter( 'generate_post_date_output', function( $output, $time_string ) {
    $time_string = '<span class="label">Last updated: </span><time class="entry-date published" datetime="%1$s" itemprop="datePublished">%2$s</time>';

    if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
        $time_string = '<span class="label">Last updated: </span><time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">%4$s</time>';
    }

    $time_string = sprintf( $time_string,
        esc_attr( get_the_date( 'c' ) ),
        esc_html( get_the_date() ),
        esc_attr( get_the_modified_date( 'c' ) ),
        esc_html( get_the_modified_date() )
    );

    return sprintf( '<div class="posted-on">%s</div> ',
        $time_string
    );
}, 10, 2 );

Any help will be appreciated.

Thank you!

Mat