Since 5.4.0, /core/cache.php explicitly adds “acf” to a non-persistent-cache group via calling wp_cache_add_non_persistent_groups().
So for some reason it has been determined that ACF should not use the persistent cache.
Why? What’s the logic there and why can’t it be overruled without hacking this file?
HOWEVER, if you look at wp_cache_add_non_persistent_groups(), it does nothing! It’s an empty function in WP core. So I dunno what to think.
A
