Hi JunePratt, thank you for the code - I copied both your code sections and it worked however it has somehow duplicated the image (I'm working on Brooklyn).
Therefore, I now have two thumbnail images - 1 where the hover works as expected and 2nd which is a static duplicate. Do you know how I can fix the image duplication so that it only shows the one image with the hover function?
Please see image below:
This works for Debut for me, where other similar instructions do not.
But I would love to find code that would ZOOM the primary image, not just give an alternate image.