Fatal Exception: NSGenericException
*** Collection <__NSArrayM: 0x28313ce10> was mutated while being enumerated.
-[CAMPriorityNotificationCenter _removeObserver:fromObserversByName:]
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Fatal Exception: NSGenericException
0 CoreFoundation 0x1878e8298 __exceptionPreprocess
1 libobjc.A.dylib 0x19b642480 objc_exception_throw
2 CoreFoundation 0x1878e7c5c -[__NSSingleObjectEnumerator initWithObject:collection:]
3 CameraUI 0x1affb7e7c -[CAMPriorityNotificationCenter _removeObserver:fromObserversByName:]
4 CameraUI 0x1affb81a8 -[CAMPriorityNotificationCenter removeObserver:]
5 CameraUI 0x1b0066510 -[CAMCaptureEngine dealloc]
6 libsystem_blocks.dylib 0x1cfcbc784 _Block_release
7 libdispatch.dylib 0x18750a290 _dispatch_source_handler_dispose
8 libdispatch.dylib 0x18750935c _dispatch_source_invoke$VARIANT$armv81
9 libdispatch.dylib 0x1874fc210 _dispatch_lane_serial_drain$VARIANT$armv81
10 libdispatch.dylib 0x1874fce2c _dispatch_lane_invoke$VARIANT$armv81
11 libdispatch.dylib 0x18750666c _dispatch_workloop_worker_thread
12 libsystem_pthread.dylib 0x1cfd355bc _pthread_wqthread
13 libsystem_pthread.dylib 0x1cfd3886c start_wqthread
Crashed: com.google.firebase.crashlytics.ios.exception
SIGABRT ABORT 0x00000001b36927b0
FIRCLSProcessRecordAllThreads
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