Image product not changing in the product builder when i select another variant

My website sells computers.
I want them to have the option to select white or black cases of the same case.
Or 2x8GB or 4x16GB.
But I want the image to go with it.

As you can see in the images there is no difference in the image but I did set another image and text/price(text/price is different) in the product itself. I did that with variable product and than selected variants. Also you can zoom in on the picture when you hover your mouse over it. But at this site it is working without zoom in. Maybe that’s the problem but where can I change that if thats the problem. https://www.yourbuild.nl/woo_product_builder/game-pc-amd-configurator/?step=6