You have a second possibility:
Create a new page Shop and add Element WooCommerce from the builder. You can modify that as you want in the element options section.
Can you please add some valid wp credentials in your profile data extra fields? So we can give this a closer look. Read this article for more information.
I checked and if i understood right what you meant, i think it does disappear because on mobile it can show one item at a time. See screenshot: https://ibb.co/njCme7
