Electro - Always display attributes in Specifications tab

functions.php

add_action( 'woocommerce_before_single_product', 'ec_child_modify_display_specs_attr' );

function ec_child_modify_display_specs_attr() {
	global $post;

	update_post_meta( $post->ID, '_specifications_display_attributes', 'yes' );
}

Hello @drfranky1

I am sorry I do not what is the reason for the issue you've described. The code hook into woocommerce_before_single_product action which is executed in frontend only and not during import.