Size charts with WPML

And I have another question for you. 😉
I am using WPML for translating my page. I can assign the size charts to my main language without problems.
In my second language when I try to assign a chart to a product I get the Ajax error Loading failed in the Select Chart dropdown.

Is this a bug or does your plugin not support WPML? If the latter do you plan to add support for WPML?

https://wordpress.org/plugins/productsize-chart-for-woocommerce/