Guess what I found in my inbox today when I checked my email:
"Dear True Star Design,
At this time, CINGO! cannot be posted to the App Store because it is crashing on iPhone OS 2.2.1 and Mac OS X 10.5.6.
Steps to Reproduce:
1. Launch App 2. Press "Change Game Lock" and the app crashes
In order for your application to be reconsidered for the App Store, please resolve this issue and upload your new binary to iTunes Connect."
As you can see, my application was rejected from the App Store. When I tested my application, I found nothing wrong with it. Then, I deleted it from my iPhone Simulator and was able to produce the error instantly. It turns out that the file responsible for displaying the "Change Game Look" button had somehow moved to a sub-directory of my main project folder, and the OS could not locate it. I had not detected this error because the file had been present in an earlier version and was not cleared whenever I simply rebuilt the code for the application. Other than that I now probably have to wait for another week for my application to be approved, no harm done: I uploaded a new binary with the file moved to the correct folder.
Note to Self: Always delete applications and rebuild them before submitting them.