Problem with the product sticky bar

Hello, I have variable products, but in the sticky bar present when you scroll down the product page, the price range of the variable products and the “Select Options” button is displayed, which if you click will send you back to the top for choosing options , but even if the product choice options have already been made, the bar does not change and remains the same with the minimum and maximum prices and the radio button, while it should show only the variant chosen (including the photo of the variant and not the general one) and the button should be ADD TO CART!