Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unexpected start state' : <p>I've strange and rare to reproduce crash that happening on iOS 9. The question are <strong>How to fix this</strong> or <strong>What leads to this exception</strong> </p>

<p>As you can see traces not contains my code and crash happens on app start.   </p>

<pre><code>Last Exception Backtrace:
0   CoreFoundation                       0x0000000180a49900 __exceptionPreprocess + 124
1   libobjc.A.dylib                      0x00000001800b7f80 objc_exception_throw + 52
2   CoreFoundation                       0x0000000180a497d0 +[NSException raise:format:arguments:] + 104
3   Foundation                           0x00000001813bca08 -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:] + 84
4   UIKit                                0x00000001859f9f34 _prepareForCAFlush + 252
5   UIKit                                0x00000001859ff4f0 _beforeCACommitHandler + 12
6   CoreFoundation                       0x0000000180a00588 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 28
7   CoreFoundation                       0x00000001809fe32c __CFRunLoopDoObservers + 368
8   CoreFoundation                       0x00000001809fe75c __CFRunLoopRun + 924
9   CoreFoundation                       0x000000018092d680 CFRunLoopRunSpecific + 380
10  GraphicsServices                     0x0000000181e3c088 GSEventRunModal + 176
11  UIKit                                0x00000001857a4d90 UIApplicationMain + 200
12  MyAppName                            0x000000010009d200 main (main.m:14)
13  ???                                  0x00000001804ce8b8 0x0 + 0

Thread 0 Crashed:
0   libsystem_kernel.dylib               0x00000001805ec140 __pthread_kill + 8
1   libsystem_pthread.dylib              0x00000001806b4ef8 pthread_kill + 108
2   libsystem_c.dylib                    0x000000018055ddac abort + 136
3   MyAppName                            0x0000000100805bcc uncaught_exception_handler + 28
4   CoreFoundation                       0x0000000180a49c88 __handleUncaughtException + 648
5   libobjc.A.dylib                      0x00000001800b823c _objc_terminate() + 108
6   libc++abi.dylib                      0x00000001800aaf44 std::__terminate(void (*)()) + 12
7   libc++abi.dylib                      0x00000001800aab10 __cxa_rethrow + 140
8   libobjc.A.dylib                      0x00000001800b8120 objc_exception_rethrow + 40
9   CoreFoundation                       0x000000018092d728 CFRunLoopRunSpecific + 548
10  GraphicsServices                     0x0000000181e3c088 GSEventRunModal + 176
11  UIKit                                0x00000001857a4d90 UIApplicationMain + 200
12  MyAppName                            0x000000010009d200 main (main.m:14)
13  ???                                  0x00000001804ce8b8 0x0 + 0
</code></pre>
