I have the same issue here did anyone find a way to fix it?
Actually, I did work this was being silly I didn’t add the fields I needed to the argument. I looped through my created fields and added the keys into the form
$fields = new HAELCP_Subscriptions_Acf($this->plugin);
$get_fields = $fields->register_fields($subscription->get_id());
if ($get_fields){
$fields_to_get = array();
foreach ($get_fields['fields'] as $key => $field){
$fields_to_get[] = $field['key'];
}
}
acf_form(array(
'post_id' => $subscription->get_id(),
'field_groups' => array($subscription->get_id()),
'fields' => $fields_to_get
));