If you have a multilanguage store, please make sure to insert the following script inside the head tag of the theme.liquid template:
<script>
window.zakekeShopLocales = [
{% for locale in shop.published_locales %}
{
iso_code: {{ locale.iso_code | json }},
root_url: {{ locale.root_url | json }},
primary: {{ locale.primary | json }}
},
{% endfor %}
];
</script>
Then you should add this tag to the customizable products in Shopify: zakeke-product
It will force the customize button to show on also the tranlated version of the prodcut