Do you mean that it didn't automatically pull up Herz's name when you typed it in? It will only automatically display a name for you if it's a close family member or a profile you've recently visited. Try visiting his profile, then retyping it on the event page. Alternatively, use the "search more" link.
Automatic name display takes up a ton of system resources. If the system had to store every single profile, the lag would be unbearable. It's no different than your browser not autofilling every possible URL when you start typing.
