[Waiting for user confirmation] Missing download links on Thank You page and in customer emails

I am trying to: sell downloadable products in two languages.

Link to a page where the issue can be seen: we have currently implemented a temporary fix.

I expected to see: download links on the Thank You page and in customer emails after purchasing a downloadable product.

Instead, I got: no links on the Thank You page or in customer emails. They are however visible on the My Account page, and on the WooCommerce order itself.

Additional information:
I read another thread about what seems to be the same issue (post #9097641). That thread was closed because you were unable to consistently replicate it. We have therefore been trying to replicate and debug the issue ourselves, and we have found what seems to be the cause, at least in our case.

In the filter_downloadable_product_items() function of the WooCommerce Multilingual plugin, the following line of code is executed:

$translated_product_id = apply_filters( 'translate_object_id', $item->get_product_id(), 'product', false, $order_language );

By printing the order language of orders with missing links, we found that the $order_language variable was set to "en" (English). The default language of the site is "no" (Norwegian), and as such, the original products are added in Norwegian, and the download permissions are granted to the Norwegian product ID, regardless of the value of $order_language. See uploads for images with $order_language = "no" and $order_language = "en".

When the $order_language is set to "no", the $translated_product_id of the previously pasted code becomes the product ID of the Norwegian product, and the links are displayed. However, when $order_language is set to "en", the $translated_product_id remain the English one, and no links are displayed. This is because the download permissions are given to the Norwegian product, as mentioned earlier, so the query to check for permissions will return empty when looking up the English product IDs.

We are having issues with this on a daily basis, so what we've done to temporarily fix it is to hardcode filter_downloadable_product_items() to always use "no" instead of $order_language:

$translated_product_id = apply_filters( 'translate_object_id', $item->get_product_id(), 'product', false, 'no' );

The WooCommerce Multilingual setting "Products Download Files" is set to "Use the same files for translations", and the products are not variable.

Hopefully, this will allow you to escalate the issue. Thanks in advance!