PowerPack Content Grid - Group post terms by taxonomies in meta

code.php

<?php // ignore this.

// Instructions:
// 1. Add the following CSS class to the Content Grid module: cg-with-meta-tags
// 2. Add the below code to your current theme's functions.php file.

add_action( 'pp_cg_before_post_content', function( $post_id, $settings ) {
    if ( false === strpos( $settings->class, 'cg-with-meta-tags' ) ) {
        return;
    }
    if ( ! isset( $terms_list ) ) {
        $terms_list  = wp_get_post_terms( $post_id, $settings->post_taxonomies );
	$terms_list  = is_wp_error( $terms_list ) ? array() : $terms_list;
    }
    if ( empty( $terms_list ) ) {
       return;
    }
    ?>
    <div class="pp-content-post-category pp-post-meta">
    <?php
    $sorted = array();
	foreach ( $terms_list as $term ) {
        $key = $term->taxonomy . '_' . $term->name;
        if ( ! isset( $sorted[ $key ] ) ) {
            $sorted[ $key ] = $term;
        }
    }
    ksort( $sorted );
    $i = 1;
    foreach( $sorted as $term ) {
        $class = ( isset( $term->parent ) && $term->parent > 0 ) ? ' child-term' : ' parent-term';
        ?>
        <span class="pp-post-meta-term term-<?php echo $term->slug; ?><?php echo $class; ?>"><?php echo $term->name; ?></span>
		<?php if ( $i != count( $terms_list ) ) { ?>
		<span class="pp-post-meta-separator"><?php echo $settings->meta_separator; ?></span>
	    	<?php } ?>
        <?php
        $i++;
    }
    ?>
    </div>
    <?php
}, 10, 2 );