We've moved an FX.php-based CWP solution to query against FMS12, but the server returns an error 4, Command not found, when we add the sort parameter to the FX Find or FindAll method. Apparently, AddSortParam() sends the server a command that it doesn't recognize. As mentioned, this was working with FMS 10 and 11. For now, we aren't sorting the resulting found set. But this is annoying.
Anyone else seeing this?