I am having this same issue. Just purchased the theme, so it’s up-to-date as far as I know – v1.3.14.

No product images show up unless I re-size the window by a pixel or two.

Happens in Safari, Chrome and Firefox.

Also, the following WooCommerce settings seem to have no change – the page pulls down the full size images no matter what settings I have in the sizes and regardless of running thumbnail re-sizing or even just uploading new images. Additionally, the WooCommerce lightbox feature never turns off :

Catalog Images 600×700px Hard Crop?
Single Product Image 600× 700px Hard Crop?
Product Thumbnails
60×70px Hard Crop?
Product Image Gallery Product Image Gallery Enable Lightbox for product images

Thanks.