This looks like an interesting way of handling this. I’m not sure what’s going on with the archives, though. I’m getting a Page Not Found when I go to what should be the archive page (per your post above), though. I checked my functions.php and see that archive is set to true for my employee post type, and I also added the rewrite slug code you linked to, so I’m not sure what the deal is there. Any ideas?
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users