This theme adds his own Woo Gallery replacing & removing the hooks needed for SVI to be put in place. The fix:

1. Add to your child theme functions.php the following code:

   add_action( 'woocommerce_before_single_product_summary', 'svi_woocommerce_show_product_images', 19 );
   
   
   function svi_woocommerce_show_product_images(){
   remove_action( 'woocommerce_before_single_product_summary', 'zoa_product_gallery', 20 );
   }

2. Add the following class to WooCommerce > SVI > Layout Fixes – Custom CSS: “single-product-gallery” this is the class your theme uses to fit the gallery into position.

 

Cheers,

David