I have two issues with the Portfolio on the website.
1: When I add the PORTFOLIO element to the website, it won’t display on the mobile site. (See the attached screenshot.)
2: In the Portfolio element, you can filter by Portfolio Category. When I try to do that, the category is deleted and the element will only display all the items. (I have three categories, and I’d like the home page to only have two of them.)
I hope you are well today and thank you for your questions.
It seems this is happening because of Jetpack mobile theme https://jetpack.com/support/mobile-theme/ you are using on your site so please try temporary disabling it.