Hello,
The problem is caused by the Lazy loading function. We have a special code to deactivate this feature in WooCommerce email. Try to add the following PHP code snippet to the child theme functions.php file to fix this
function woodmart_custom_stop_lazy_loading() {
woodmart_lazy_loading_deinit( true );
}
add_action( 'woocommerce_email_header', 'woodmart_custom_stop_lazy_loading', 10 );
function woodmart_custom_start_lazy_loading() {
woodmart_lazy_loading_init( true );
}
add_action( 'woocommerce_email_footer', 'woodmart_custom_start_lazy_loading', 10 );
Regards