Woocommerce variation product price didn't show anymore inside add to cart button

Question

I'm using Woocommerce variation product price inside Add to cart button answer code and it was working really well until today. I don't know why, but the price is no longer displayed in the "add to cart button".

As you can see on my product page.

But, it work with product with no variations :/

This is my code (almost the same, just translate some words and change the currency)

add_filter( 'woocommerce_product_add_to_cart_text', 'custom_add_to_cart_price', 20, 2 ); // Shop and other archives pages
add_filter( 'woocommerce_product_single_add_to_cart_text', 'custom_add_to_cart_price', 20, 2 ); // Single product pages
function custom_add_to_cart_price( $button_text, $product ) {
    // Variable products
    if( $product->is_type('variable') ) {
        // shop and archives
        if( ! is_product() ){

            $product_price = wc_price( wc_get_price_to_display( $product, array( 'price' => $product->get_variation_price() ) ) );
            return $button_text . ' - Dès ' . strip_tags( $product_price );
        } 
        // Single product pages
        else {
            $variations_data =[]; // Initializing

        // Loop through variations data
        foreach($product->get_available_variations() as $variation ) {
            // Set for each variation ID the corresponding price in the data array (to be used in jQuery)
            $variations_data[$variation['variation_id']] = $variation['display_price'];
        }
        ?>
        <script>
        jQuery(function($) {
            var jsonData = <?php echo json_encode($variations_data); ?>,
                inputVID = 'input.variation_id';

            $('input').change( function(){
                if( '' != $(inputVID).val() ) {
                    var vid      = $(inputVID).val(), // VARIATION ID
                       vprice   = ''; // Initilizing

                    // Loop through variation IDs / Prices pairs
                    $.each( jsonData, function( index, price ) {
                        if( index == $(inputVID).val() ) {
                            vprice = (price).toFixed(2); // The right variation price
                        }
                    });
                    // Change price dynamically when changing options
                    $( "button.single_add_to_cart_button.button.alt span" ).remove();
                    $(".single_add_to_cart_button").append("<span>" + " " + vprice + " €" + "</span>");
                }
            });
        });
        </script><?php
            return $button_text;
        }
    } 
    // All other product types
    else {
        $product_price = wc_price( wc_get_price_to_display( $product ) );
        return $button_text . '  ' . strip_tags( $product_price );
    }
}