Hi Austin,
have you created more than 8 portfolios? 8 is default and that is loaded in the beginning when you open your portfolio site for first time.
You also need to set categories when open Portfolio element, something like this:
branding, case-study, crafting, design-2, photography (be sure that you created categories in Portfolio/Categories) and also you need to check last field “AJAX load more posts” in Portfolio element.
For third question we need to access your WordPress, so please send us your WordPress credentials in a private field below so we can take a closer look. Thank you
Kind regards