List Entries and Matrix I'm trying to list some entries from specific channel and get the access to matrix fields. The problem is that some of the entries are listed twice or even often. How do I remove the duplicates?

    {% for coupon in craft.entries.section('coupons').status('live').order('postDate asc') %}
        {% for content in coupon.contentBuilder %}
        {% endfor %}
    {% endfor %}
You'll have to build a list of the data and then display it.

{% set arr = [] %}

{% for coupon in craft.entries.section('coupons').status('live').order('postDate asc') %}
    {% for content in coupon.contentBuilder %}
        {% set arr = arr|merge([content.myUniqueFieldName: content]) %}
    {% endfor %}
{% endfor %}

{% for item in arr %}
    {{ item.title }}
{% endfor %}