For Loops iterating out of order

[rchmarketing]

I'm trying to modify a collection page on my Shopify theme which displays items in the <div id="product loop">...</div>

I want to loop through in-stock items then loop through out-of-stock items. (liquid code and html inspector below)

However, something strange is happening:

The last iteration of my in-stock loop isn't occurring until after the entire out-of-stock loop finishes. I added html tags to the code to try and track the issue.

How can a product with my added <!-- avail --> comment be after the <!-- END Available Products --> when the comment is nested inside the loop?

Annotated inspector window

<div id="product-loop" {% if settings.collection-sidebar %}class="desktop-10 tablet-5 mobile-3"{% endif %}>
  {% assign products-per-row = settings.products-per-row %}

  <!-- Available Products -->
  {% for product in collection.products %}
    {% assign outofstock = true %}
    {% for variant in product.variants %}
        {% if variant.inventory_quantity > 0 %}
            {% assign outofstock = false %}
        {% endif %}
    {% endfor %}

    {% if outofstock == false %}
      {% if current_tags != null %}
          <!-- Tag section removed for brevity -->
      {% endif %}

      <div class="product-index {% if template == 'index' and settings.homepage-product-display == 'carousel' %}{% else %}{% if products-per-row == "6" %}desktop-2{% cycle ' first', '', '', '', '', ' last' %}{% elsif products-per-row == "4" %}desktop-3{% cycle ' first', '', '', ' last' %}{% elsif products-per-row == "3" %}desktop-4{% cycle ' first', '', ' last' %}{% elsif products-per-row == "5" %}desktop-fifth{% cycle ' first', '', '', '', ' last' %}{% elsif products-per-row == "2" %}desktop-6{% cycle ' first', ' last' %}{% endif %} tablet-half mobile-half{% endif %}" data-alpha="{{ product.title }}" data-price="{{ product.price }}">
        <!-- avail -->
        {% include 'product-listing' %}
        {% include "panda-swatch" %}
      </div>

    {% endif %}
  {% endfor %}
  <!-- END Available Products -->

  <!-- Unavailable Products -->
  {% for product in collection.products %}
    {% assign outofstock = true %}
    {% for variant in product.variants %}
        {% if variant.inventory_quantity > 0 %}
        {% assign outofstock = false %}
        {% endif %}
    {% endfor %}

    {% if outofstock == true %}
      {% if current_tags != null %}
          <!-- Tag section removed for brevity -->
      {% endif %}

      <div class="product-index {% if template == 'index' and settings.homepage-product-display == 'carousel' %}{% else %}{% if products-per-row == "6" %}desktop-2{% cycle ' first', '', '', '', '', ' last' %}{% elsif products-per-row == "4" %}desktop-3{% cycle ' first', '', '', ' last' %}{% elsif products-per-row == "3" %}desktop-4{% cycle ' first', '', ' last' %}{% elsif products-per-row == "5" %}desktop-fifth{% cycle ' first', '', '', '', ' last' %}{% elsif products-per-row == "2" %}desktop-6{% cycle ' first', ' last' %}{% endif %} tablet-half mobile-half{% endif %}" data-alpha="{{ product.title }}" data-price="{{ product.price }}">
        <!-- no avail -->
        {% include 'product-listing' %}
        {% include "panda-swatch" %}
      </div>

    {% endif %}
  {% endfor %}
  <!-- END Unavailable Products -->

</div>