Issue with product images not showing in woocommerce

Hi All, recent install, all was working ok but looks like I have managed to change something causing the product image to not show, inspecting the code it is but opacity set to 0.

Traced it to the opacity setting here in the class being set to 0, but cant find what is causing it
If I change the theme this fixes the issue
anybody any suggestions what controls this class

<div class="woocommerce-product-gallery woocommerce-product-gallery--with-images woocommerce-product-gallery--columns-4 images" data-columns="4" style="opacity: 0;transition: opacity .25s ease-in-out;">

WordPress 5.5.3 running Kakina theme.
woocommerce version 4.7.1

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