Hey guys i have a similar issue and none of the solutions above seemed to resolve it. Everything works fine on my Hestia based site except the product card resizing on a cellphone(mobile device) it is not responsive at all. It looks as though there may be too much padding or the width is incorrect for the product cards.
Please help!!!!
see link below on a mobile device:
https://www.fbflifestyle.co.za/product-category/beaachwear/beachwear-accessories/