iPad ipad 2 multi-task app switcher causes crash

I have an ipad 2 running 5.0.1 jailbroken. Every since I moved from4.3.3 to 5.0.1 (not that that is necessarily the problem) I can't use the app switcher/multi-task feature. When I double click home to bring it up and click another app it immediately crashes the springboard and restarts in safe mode every time.

I have googled this but only found ipod users having this issue way back in 2010 with 4.1 firmware.

any known issues or suggestions to fix?

 

Thank you, this helped. I tried to think back and the last thing I installed was springtomize 2. uninstalled and updated the other cydia tweaks that needed updating and it works now. I really liked springtomize 2 but maybe there is ipad 2 5.0.1 compatability issues.