Maybe if you re flash a recent version of PE then go back into restore if you made a back up. Just like flashing any other rom. And restoring back?
Thanks, just after I posted that I had the same idea. I was able to flash a recent PE but it got stuck on the Nexus X. Unfortunately I am waiting for a call so I could only let it reboot for about 10 minutes and had to do a battery pull and then re-installed the 4.2 rom. I'll try to go back to PE tomorrow when I have time to let it reboot for longer. Thanks for your help.