Сбой iOS при CFAllocatedReferenceCountedObject

Мое приложение часто вылетает с информацией:

0 CFNetwork	CFAllocatedReferenceCountedObject::_retainable_hash(void const*)
1 CoreFoundation	_CFBasicHashFindBucket + 164
2 CoreFoundation	CFDictionaryGetValue + 224
3 CFNetwork	TubeManager::_onqueue_enqueueRequestForProtocol(MetaConnectionCacheClient*, HTTPRequestMessage const*, MetaConnectionOptions, BaseAwaitingTube*) + 80
4 CFNetwork	TubeManager::_onqueue_reenqueueAwaitingTube(BaseAwaitingTube*) + 112
5 CFNetwork	___ZN11TubeManager21_onqueue_newTubeReadyEP4Tube13CFStreamError_block_invoke + 28
6 CFNetwork	___ZNK18QCoreSchedulingSet12performAsyncEU13block_pointerFvvE_block_invoke + 52
7 libdispatch.dylib	__dispatch_call_block_and_release + 24
8 libdispatch.dylib	__dispatch_client_callout + 16
9 libdispatch.dylib	__dispatch_queue_serial_drain$VARIANT$mp + 528
10 libdispatch.dylib	__dispatch_queue_invoke$VARIANT$mp + 340
11 libdispatch.dylib	__dispatch_queue_serial_drain$VARIANT$mp + 200
12 libdispatch.dylib	__dispatch_queue_invoke$VARIANT$mp + 340
13 libdispatch.dylib	__dispatch_root_queue_drain_deferred_wlh$VARIANT$mp + 404
14 libdispatch.dylib	__dispatch_workloop_worker_thread$VARIANT$mp + 644
15 libsystem_pthread.dylib	_pthread_wqthread + 932