i also have a hack for this…
when you add image you only select one variation.
so the expected beavior is when you change to the selected variation, the picture will change also and not when you select all the variation options that assign to the product.
because this i think that is a bug.
Thanks,
another bug that i found is when i have variations that compose by more than one attirbute, i need to choose in the product page both attributs to display the vairaions pictures.
see:
http://svi.rosendo.pt/free/product/variation/
i added two variations.
one is in hebrew that dont work and one in english (green) that work
