Really old post, sorry @kulturbanause, didn’t see you’re follow up back then. To clarify my previous comment, I don’t actually use the value returned from
$meta = get_post_meta($post_id);
instead I just use that function call for force WP to get every custom field for a post. Once that is done then I use get_field() and other ACF functions because the values are cached and the WP cache. It is just a way to reduce DB requests.
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