For those having issues and are using SSL (https) for your wordpress admin:
I was able to resolve my mm-forms-community issues (not saving forms, etc) by making the "$base_url" variable reflect the proper https url for admin pages:
Add this function to the bottom of mm-forms.php:
function get_mmforms_base_url() {
$url = get_option('siteurl');
if (defined('FORCE_SSL_ADMIN') && constant('FORCE_SSL_ADMIN'))
$url = preg_replace('|^http://|i', 'https://', $url);
return $url;
}
On line 1141 AND line 1557 of mm-forms.php, change:
$base_url = get_option('siteurl') . '/wp-admin/options-general.php';
to
$base_url = get_mmforms_base_url() . '/wp-admin/options-general.php';