A colleague of mine hat the same problem here in Germany.
We ended up reainstalling OS, library and Cat and all was fine.
As we were a bit in hurry there was no time to ask on the forum so the Font Feature will rest in my mind.

It was exactly the same Problem you were describing (Cat Server was running perfectly before) So i think this Font was uninstalled out of some reason.

Best

Rolf
www.chaoscenter.net