I also had some issues with the above posted solution.
The problem is:
if ($value !== NULL) {
$value is an empty array, and thus not NULL, so I got it working using this:
function my_acf_load_value($value, $post_id, $field) {
if (!empty($value)) {
// if the value is exactly NULL it means
// the field has never been updated
// we don't want to change fields that have already been editied
return $value;
}
// set the new field value
$value = array(
// add a nested array for each row
array(
// add an array item for each sub field (use field key - not name)
'field_key_here' => 'field 1',
'field_key_here' => 'field 2'
)
); return $value;
}
add_filter('acf/load_value/name=games', 'my_acf_load_value', 10, 3);
