I wasn’t saying Xcode 5.1 was causing your error, because you never mentioned what your error was. I was just saying that we haven’t touched our templates for the builds so nothing has changed on our side. We use the Xcode tools to sign the app and to run the Xcode Simulator.
The reason why you can’t submit an app built with build 1202 is because it still builds for iOS 6.1 and Apple is now requiring builds targeting iOS 7.0. Build 1262 does build for iOS 7.0 but it’s built with Xcode 5.0 and Apple has been rejecting apps that don’t use Xcode 5.1.1.
We can’t go back and change previous builds, which is why I suggested moving your code to Graphics 2.0. You don’t want to finished your app and find out that you can’t submit it to the app store.