I have created a variable product with but it is not working on the products page. The image, sku, price and additional info does not change when you select the option. I have been onto WooCommerce and they have said it is an issue with the Jevelin plugin.
I hope you are well today and thank you for your question.
It seems happening on your due to the javascript error generated in the browser console due to ultimate member plugin so please try deactivating the plugin and contact the plugin support.