Using Full Size Image for Zoom

I’m using Woocommerce with Regenerate Thumbnails and WPML.
I created some products and then installed YITH Zoom Magnifier. At first it worked ok, using by default the Full Image Size when Zooming. But after regenerating thumbnails and importing new products with WP All Import, the Zoom Magnifier uses the Large Image Size for Zooming. The only way that I found to get the plugin working again as expected is by replacing the var $magnifier_url with $image_link on product_image_magnifier.php.
The problem is that I’ll not be able to update the plugin in the future. At least not without having to manually change it every time.
Is it possible that you could add a simple option, maybe a checkbox, for using the full size image for zooming in the admin page ? If you check that option, the plugin uses $image_link instead of $magnifier_url.

https://www.ads-software.com/plugins/yith-woocommerce-zoom-magnifier/