i have added different image against each product variation and when i go over the product to zoom it shows me featured image to the one it should be showing when selecting the product variation. so when you select the product variation and then zoom it will give you a different image- also to note the size of the image also changes and no longer stays contained in the same size box. see image below:
I don't think you read all my message carefully. That is a featured image. Now select another variation for the same product from the drop down attributes and the image will change then tell me what image you see when hovering over the product image.