Essential Grid doesn't link to portfolio page anymore

Good morning,

I had a perfectly working portfolio grid set up with Essential Grid. Not sure when this happened, but the link on the skin does not open the portfolio page anymore, it only shows a page with the featured image on it but nothing else.

I tried different skins with the same outcome. It does work on a post grid and I cannot find the link/seo ‘portfolio’ in the skin builder anymore – how do I relink the grid?

Thank you!