App rechazada: extraño registro de bloqueo de iPhone

Apple rechazó mi aplicación dos veces debido a un bloqueo en el lanzamiento. Lo he probado muchas veces en diferentes dispositivos (iPhone 4, iPhone3GS, Simulator, iPad2) y nunca se ha bloqueado.

EDIT: Esta es una parte del registro de bloqueo simbolizado.

¡Gracias

    Incident Identifier: DD9A5C38-DFE5-4CB5-A15B-8C55967FFFD1
        CrashReporter Key:   bf318d2d968114ff69d458c2f8cbdc6b869e1ec7
        Hardware Model:      iPhone3,1
        Process:         iMetroRoma [2788]
        Path:            /var/mobile/Applications/8EC59E9D-D070-4CAD-892E-91BCE94AA58C/iMetroRoma.app/iMetroRoma
        Identifier:      iMetroRoma
        Version:         ??? (???)
        Code Type:       ARM (Native)
        Parent Process:  launchd [1]

    Date/Time:       2011-10-24 13:23:22.895 -0700
    OS Version:      iPhone OS 5.0 (9A334)
    Report Version:  104

    Exception Type:  EXC_CRASH (SIGABRT)
    Exception Codes: 0x00000000, 0x00000000
    Crashed Thread:  0

    Last Exception Backtrace:
    0   CoreFoundation                  0x30d828bf __exceptionPreprocess + 163
    1   libobjc.A.dylib                 0x37f271e5 objc_exception_throw + 33
    2   CoreFoundation                  0x30ccbb6b -[__NSArrayM objectAtIndex:] + 271
    3   iMetroRoma                      0x0000426f 0x1000 + 12911
    4   CoreLocation                    0x34fbc5df -[CLLocationManager onClientEventLocation:] + 1171
    5   CoreLocation                    0x34fbbf81 -[CLLocationManager onClientEvent:supportInfo:] + 201
    6   CoreLocation                    0x34fb662f __CLClientInvokeCallback_block_invoke_0 + 55
    7   CoreFoundation                  0x30d56b31 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 13
    8   CoreFoundation                  0x30d5615f __CFRunLoopDoBlocks + 159
    9   CoreFoundation                  0x30d55381 __CFRunLoopRun + 1433
    10  CoreFoundation                  0x30cd84dd CFRunLoopRunSpecific + 301
    11  CoreFoundation                  0x30cd83a5 CFRunLoopRunInMode + 105
    12  GraphicsServices                0x33906fed GSEventRunModal + 157
    13  UIKit                           0x32d4a743 UIApplicationMain + 1091
    14  iMetroRoma                      0x000024e3 0x1000 + 5347
    15  iMetroRoma                      0x0000249c 0x1000 + 5276


    Thread 0 name:  Dispatch queue: com.apple.main-thread
    Thread 0 Crashed:
    0   libsystem_kernel.dylib          0x3206732c __pthread_kill + 8
    1   libsystem_c.dylib               0x3655df54 pthread_kill + 48
    2   libsystem_c.dylib               0x36556fe4 abort + 88
    3   libc++abi.dylib                 0x31a1ff64 abort_message + 40
    4   libc++abi.dylib                 0x31a1d346 _ZL17default_terminatev + 18
    5   libobjc.A.dylib                 0x37f272dc _objc_terminate + 140
    6   libc++abi.dylib                 0x31a1d3be _ZL19safe_handler_callerPFvvE + 70
    7   libc++abi.dylib                 0x31a1d44a std::terminate() + 14
    8   libc++abi.dylib                 0x31a1e81e __cxa_rethrow + 82
    9   libobjc.A.dylib                 0x37f2722e objc_exception_rethrow + 6
    10  CoreFoundation                  0x30cd853e CFRunLoopRunSpecific + 398
    11  CoreFoundation                  0x30cd839e CFRunLoopRunInMode + 98
    12  GraphicsServices                0x33906fe6 GSEventRunModal + 150
    13  UIKit                           0x32d4a73c UIApplicationMain + 1084
    14  iMetroRoma                      0x000024dc 0x1000 + 5340
    15  iMetroRoma                      0x00002494 0x1000 + 5268
  ...

    Thread 0 crashed with ARM Thread State:
        r0: 0x00000000    r1: 0x00000000      r2: 0x00000001      r3: 0x00000000
        r4: 0x00000006    r5: 0x3f54dce8      r6: 0x00000002      r7: 0x2fdffa6c
        r8: 0x001a1c20    r9: 0x31a20a4a     r10: 0x0000d224     r11: 0x0000cbfc
        ip: 0x00000148    sp: 0x2fdffa60      lr: 0x3655df5b      pc: 0x3206732c
      cpsr: 0x00000010

...

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