I'm customizing my theme's category template to display the current category's child categories instead of the posts from that category.

The category template links to another template file (content-grid.php) which generates the dynamic post/category content.

The only way I can get it to work is by combining all the code together on the category template.

This is how the original category template links to content-grid.php (I'm only showing the relevant code):

echo '<div class="row">';
while ( have_posts() ) : the_post();
$count++;
get_template_part( 'template-parts/content-grid' );
if ( $count % 2 == 0 ) {
echo '</div>';

In my customized template I've changed the standard loop to a "foreach" loop and link to the same file like this:

echo '<div class="row">';
foreach ( $child_categories as $child ){
$count++;
get_template_part( 'template-parts/content-grid' );
if ( $count % 2 == 0 ) {
echo '</div>';

Is there any reason why this shouldn't work?