Why are in-stock product sizes grayed out on my site?

Store Design
,
1

Help! On certain products my sizes are now grayed out even if in stock. Could someone look at this code and see if something in here could be triggering it? This is set to hide color variant swatches with a hide tag.

{%- assign swatch_file_extension = 'png' -%}

{%- capture hidden_colors -%}
{%- for tag in product.tags -%}
  {%- if tag contains 'Hide_' -%}
      {{ tag | split: '_' | last }}
    {%- else -%}
      {%- continue -%}
  {%- endif -%}
  {%- if forloop.last == false -%}::{%- endif -%}
{%- endfor -%}
{%- endcapture -%}

{%- assign hidden_color_array = hidden_colors | split: '::' -%}

{% assign swatch_display = true %}

{% if is_color %}
  {% for hidden_color in hidden_color_array %}
    {% if hidden_color contains option.selected_value %}
      {% assign swatch_display = false %}
    {% endif %}
  {% endfor %}
{% endif %}

{%- capture size_chart_title -%}
  {{ 'products.general.size_chart' | t }} <svg aria-hidden="true" focusable="false" role="presentation" class="icon icon-size-chart" viewBox="0 0 64 64"><path d="M22.39 33.53c-7.46 0-13.5-3.9-13.5-8.72s6-8.72 13.5-8.72 13.5 3.9 13.5 8.72a12 12 0 0 1-.22 1.73"/><ellipse cx="22.39" cy="24.81" rx="3.28" ry="2.12"/><path d="M8.89 24.81V38.5c0 7.9 6.4 9.41 14.3 9.41h31.92V33.53H22.39m24.39 0v7.44m-8.13-7.44v7.44m-8.13-7.44v7.44m-8.13-7.44v7.44"/></svg>
{%- endcapture -%}

{%- liquid
  assign is_size = false
  assign size_trigger = 'products.general.size_trigger' | t | downcase
  assign downcased_option = option.name | downcase

  if downcased_option contains size_trigger
    assign is_size = true
  endif
-%}

<div class="variant-wrapper js" data-type="button">
  <label class="variant__label{% if option.name == 'Default' or option.name == 'Title' %} hidden-label{% endif %}{% unless variant_labels %} hidden-label{% endunless %}"
    for="ProductSelect-{{ section_id }}-{{ product.id }}-option-{{ forloop.index0 }}">
    {{ option.name }}
    {%- if connect_to_sizechart and is_size -%}
      <span class="variant__label-info">
        —
        {%- render
          'tool-tip-trigger',
          title: size_chart_title,
          content: section.blocks[sizechart_index].settings.size_chart.content,
          context: 'size-chart'
        -%}
      </span>
    {%- endif -%}
    {%- if is_color -%}
      <span class="variant__label-info">
        —
        <span
          data-variant-color-label
          data-index="{{ forloop.index0 }}"
          data-option-index="{{ color_option_index }}">
          {{ option.selected_value }}
        </span>
      </span>
    {%- endif -%}
  </label>
  {%- assign option_index = forloop.index -%}
  <fieldset class="variant-input-wrap"
    name="{{ option.name }}"
    data-index="option{{ option_index }}"
    data-handle="{{ option.name | handleize }}"
    id="ProductSelect-{{ section_id }}-{{ product.id }}-option-{{ forloop.index0 }}">
    <legend class="hide">{{ option.name }}</legend>
    {%- for value in option.values -%}
      {% assign swatch_display = true %}

      {%- liquid
        assign product_available = true
        if product.options.size == 1
          assign product_available = product.variants[forloop.index0].available
        endif
      -%}
      {% if is_color %}
        {% for hidden_color in hidden_color_array %}
          {% if hidden_color contains value %}
            {% assign swatch_display = false %}
          {% endif %}
        {% endfor %}
      {% endif %}
      {% unless swatch_display == false %}
      <div
        class="variant-input"
        data-index="option{{ option_index }}"
        data-value="{{ value | escape }}">
        <input type="radio"
          form="{{ form_id }}"
          {% if option.selected_value == value %} checked="checked"{% endif %}
          value="{{ value | escape }}"
          data-index="option{{ option_index }}"
          name="{{ option.name }}"
          data-variant-input
          class="{% unless product_available %} disabled{% endunless %}{% if is_color %} variant__input--color-swatch{% endif %}"
          {% if is_color %} data-color-name="{{ value | escape }}"{% endif %}
          {% if is_color %} data-color-index="{{ color_option_index }}"{% endif %}
          id="ProductSelect-{{ section_id }}-{{ product.id }}-option-{{ option.name | handleize }}-{{ value | url_encode }}">
        {%- if is_color -%}
          {%- liquid
            assign color_file_name = value | handle | append: '.' | append: swatch_file_extension
            assign color_image = color_file_name | file_img_url: '50x50' | prepend: 'https:' | split: '?' | first
            assign color_swatch_fallback = value | split: ' ' | last | handle
          -%}
          <label
            for="ProductSelect-{{ section_id }}-{{ product.id }}-option-{{ option.name | handleize }}-{{ value | url_encode }}"
            class="variant__button-label color-swatch color-swatch--{{ value | handle }}{% unless product_available %} disabled{% endunless %}"
            style="background-color: {{ color_swatch_fallback }};{% if images[color_file_name] != blank %}  background-image: url({{ color_image }});{% endif %}"
          >
            {{ value | escape }}
          </label>
        {%- else -%}
          <label
            for="ProductSelect-{{ section_id }}-{{ product.id }}-option-{{ option.name | handleize }}-{{ value | url_encode }}"
            class="variant__button-label {% unless product_available %} disabled{% endunless %}">{{ value | escape }}</label>
        {%- endif -%}
      </div>
        {% endunless %}
    {%- endfor -%}
  </fieldset>
</div>