I have a Verizon 64GB iPad 2, jailbroken via JailbreakMe 3.0. I tried to type an email today, and the characters will not show up. The keyboard is recognizing button presses, but the characters are not being entered into any of the fields in Mail.app. The keyboard works in every other app.
I began looking through my installed Mobile Substrate extensions to see if I could find anything directly related to Mail that may be causing the issue. I didn't see anything suspicious, so I just reinstalled Mobile Substrate. Still didn't fix it. I also installed Split Mail to see if purposely installing a Mail extension would fix the issue. No.
I am trying not to have to resort to a restore. As much as I want to fix this issue, I am actually having fun bug-huning. Any advice you all can offer is greatly appreciated.