File Attachments on Private sites disabled

in config.php I have :-

$config['attachments']['supported'] = true;
array('image/png', 'image/jpg');
$config['attachments']['path'] = "/file/";
$config['attachments']['dir'] = INSTALLDIR . '/file/';
$config['attachments']['uploads'] = true;
$config['attachments']['filecommand'] = "/usr/bin/file";
$config['attachments']['file_quota'] = 5000000;
$config['attachments']['user_quota'] = 50000000;
$config['attachments']['monthly_quota'] = 15000000;

as well as :-
config['site']['profile'] = 'private';
by default
and :-
// $config['site']['profile'] = 'community';
// $config['site']['profile'] = 'public';
for testing.

File uploads by changing the site to community or public but the icon is always disabled for private.

Tried via a browser and also the mustard app.