I've a bug to fix with my theme. I updated Retina theme from 4.3.2 to 4.6.3 and when I select a variant, it's not showing the variant image! It shows the variant image only in thumbnail below the principal image.
How can I fix this? I use a variant image app but for this product is not selected.
P.S. With previous version theme 4.3.2 it works.