When did you flash your phone last?
I posted this just after they fixed this in the Kitchen....hence the never mind once I found out they fixed it as I had the same issue (hidden WPA-PSK network). The kitchen updater didn't work for me, so I had to manually download the files from the kitchen site. I completely uninstalled and re-installed everything just to make sure as the Build-OS had a newer date than when I downloaded it.
http://ppckitchen.org
http://ppckitchen.org/downloads/