Change product price in cart stopped working

Just noticed the following function that I use to add a fee to the product price when a field is used has stopped working – I think after WooCommerce updated to v3.

function calculate_cart_total_name( $cart_object ) {
     
    /* additional price that has to be added */
    $additionalPrice = 5;

    
    foreach ( $cart_object->cart_contents as $key => $value ) {
        /* This will bring all the custom field objects that belongs to this product */
        $all_fields = apply_filters( 'wccpf/load/all_fields', $product_id );
        /* Iterate through all the field groups */
              
                    /* Check for the value ( or it could be any condition logic ) */

                    if( $value['wccpf_player_name'] != "" ) {
                        //change the price
                        $orgPrice = floatval( $value['data']->price );
                        $value['data']->price = (  $orgPrice + $additionalPrice );
                    }
                }
}

add_action( 'woocommerce_before_calculate_totals', 'calculate_cart_total_name', 1 );

It has worked perfectly up until now but no longer adds to the product price.

However, if I change:

$value[‘data’]->price = ( $orgPrice + $additionalPrice );

to

$cart_object->cart_contents_total += $additionalPrice;

then the additional ￡5 is added to the cart total – so it looks like something is wrong with the $value[‘data’]->price = ( $orgPrice + $additionalPrice ); line – but I can’t see why?

Thank you