I have got the same problem with my WiFi-flyer since the HC-update. I had contact with the hotline in Germany and The Netherlands but they had no solution. The best answer was: You have to wait for an update.
I will send an e-mail too and ask the other people in the android-hilfe.de forum to do the same. Maybe it helps.
Gesendet von meinem HTC Flyer P512 mit Tapatalk
SGS2 Stock 4.0.4 with Siyah
Sony Xperia Go rooted with custom kernel from Krachlatte