Single product page image doesnt expand, looks blur

I am running woocommerce 3.0.3 [latest] and shopkeeper 2.0.4 [latest again]. This issue happens only AFTER UPGRADING TO WC 3.0.3 from 3.0.1
In single product page, only on desktop versions, the product main image doesnt expand upon clicking. The gallery images expand. Also the issue is not seen on mobile. I tried with chrome and with opera, same issue. Need help. Infact the product main image looks blur on single product page.