Hi Elliot,
Custom fields are showing up for me in all post edit screens, regardless of the location rules for those field groups.
This is a recent development.
ACF Pro 5.7.0
WP 4.9.7
I experienced the exact same symptoms when I upgraded to 5.7.0. Field Groups out of their expected context, and those spinners. Same version of WP also. I just backed out of the update figured I’d wait and see if there is a 5.7.1 released soon.
thanks to another user on this forum, I realised that I’d caused this issue by loading all scripts including jQuery with the ‘defer’ tag.
the code, which filters all enqueued scripts now looks like this:
function add_async_attribute($tag, $handle) {
if (!is_admin()) return str_replace( ' src', ' defer="defer" src', $tag );
return $tag;
}
add_filter('script_loader_tag', 'add_async_attribute', 10, 2);
i.e. it’s turned off for admin pages, so that scripts load before inline ACF code is executed.