nd object item includes in "item/child/".

{% endcomment %}
<div class="row row-cols-2 row-cols-lg-4 g-2">
    {% for child in children %}
    <div class="col">
        <div class="card h-100">
            <div class="my-auto">
                <div class="card-body text-center" id="{{ child.objectid }}Card">
                
                    {% if child.title %}<div class="small text-dark mb-2">{{ child.title | truncatewords: 4 }}</div>{% endif %}
                    
                    <div class="mb-2