JiveDig,
Thanks for replying to my thread. I have tried your solution, but it is not working at all for me.
I have placed your code above acf_form_head() on my submission page template, replaced ‘download’ with my own custom post type and even tried replacing ‘$_POST[‘acf’][‘field_5483b32a04842′]’ with ‘test’.
Nothing happens. The post saves but the title still remains empty.
Are you sure this applies to ACF 5? If so, do you have any ideas what I might be doing wrong?