What is baffling is that they have comms at that level. The 4th officials will always record cautions, but usually one of the assistants will be asked to as well. Unless the comms wasn't working I just can't understand how one of the other officials hasn't spotted this and stopped her making such a monumental mistake. It might have been more understandable had either of the cards been "flashed" at a group of players, but on both it was very clear who had been cautioned.