quantity limiting filter conflicts with plugin

adding code to limit the quantity of certain items does not work when your plugin is activated. Im using the woocommerce_add_to_cart_validation filter:

function limit_cart_quantity_from_category( $passed, $product_id, $quantity ) {
    $category_slug = 'livret';
    $max_quantity = 3; // Maximum quantity allowed per order
	

    // Check if product belongs to the specified category
    if ( has_term( $category_slug, 'product_cat', $product_id ) ) {
        // Get the total quantity of items in the cart from the specified category
        $total_quantity = 0;
        foreach ( WC()->cart->get_cart() as $cart_item ) {
            if ( has_term( $category_slug, 'product_cat', $cart_item['product_id'] ) ) {
                $total_quantity += $cart_item['quantity'];
            }
        }

        // Check if the total quantity plus the quantity being added exceeds the maximum quantity
        if ( $total_quantity + $quantity > $max_quantity ) {
            wc_add_notice( sprintf( __( 'Sorry, you can only add %d items from this category to the cart.', 'your-textdomain' ), $max_quantity ), 'error' );
            $passed = false; // Prevent the item from being added to the cart
			remove_all_filters("woocommerce_add_to_cart_validation", 10);
			remove_all_filters("woocommerce_add_to_cart", 10);
			return $passed;
        }
    }
    
}
add_filter( 'woocommerce_add_to_cart_validation', 'limit_cart_quantity_from_category', 10, 3 );

the code works and the notice appears at the right moment, but the cart gets the undesired items anyways…

I cant provide a temporary account for you to troubleshoot > plugin and wordpress are at the latest versions.

ps ive donated to encourage you to look into my issue 😉

thanks in advance

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