Since February 1, Reserved Metafield Values Set by Other Apps Are No Longer Retrieved from Theme App Extension Liquid Files

Extensions
1

Hello,

As mentioned in the title, metafield values that were successfully retrieved until January 31 have suddenly stopped being retrieved at some point after February 1.

I am using the following code in my theme extension:

<div id="{{ block.id }}">
  <h2 class="ebooks__title">Ebooks</h2>
  <div class="ebooks">
    {% for order in customer.orders %}
      {% for line_item in order.line_items %}
        {% if line_item.product.metafields['app--1234567--hogehoge'].content_id != null %}
          <div class="line-item">
            <div class="line-item__thumbnail">{{ line_item | image_url: height: 120 | image_tag }}</div>
            <div class="line-item__wrapper">
              <p class="line-item__title">{{ line_item.title }}</p>
              <div class="line-item__menu">
                <div class="line-item__button">
                  <a href="/apps/hogehoge/products/{{ line_item.product.id }}" class="button">View</a>
                </div>
                <p class="line-item__date">Order Date：{{ order.created_at | date: format: 'abbreviated_date' }}</p>
              </div>
            </div>
          </div>
        {% endif %}
      {% endfor %}
    {% endfor %}
  </div>
</div>

{% schema %}
{
  "name": "Ebooks",
  "target": "section",
  "stylesheet": "ebooks.css",
  "javascript": "ebooks.js",
  "templates": ["index", "customers/account", "customers/order"],
  "settings": []
}
{% endschema %}

This extension, which is added to the order history page, is intended to display only those orders that have a value set for a specific metafield.

However, the following line no longer retrieves a value:

line_item.product.metafields['app--1234567--hogehoge'].content_id

Has there been any change on Shopify’s side?

Could this update be affecting the retrieval of the metafield values?

2

I recently developed a theme extension that utilizes app metafields. The format I’m using is app.metafields.xxx_namespace .xxx_key

3

I did the following after posting, but it did not solve the issue:

1. Verification of Metafield Settings

I checked the current metafield definition’s access using the GraphQL Admin API and confirmed that both admin and storefront are set to PUBLIC_READ.
Therefore, I understand that it should be accessible from Liquid.

2. Created a New Key with PUBLIC_READ Access Specified in the Metafield Definition

Executed the following:

mutation {
  metafieldDefinitionCreate(definition: {
    namespace: "$app:hogehoge"
    key: "content_id2"
    ownerType: PRODUCT
    type: "json"
    name: "contentId"
    access: {
      storefront: PUBLIC_READ
    }
  }) {
    userErrors {
      field
      message
    }
  }
}

I tried to retrieve the metafield from Theme App Extensions, but it could not be retrieved.

That’s all.

Is there any solution to this issue?