Been trying to recreate and research about this issue for days now and I'm not going anywhere. Here's the stack trace. Can anyone shed light on to what's happening? I take that it has something to do with remote notifications. The issue started a while back when I installed the firebase sdk. Back then it wasn't a lot but now, crashes seem to happen more often than usual.
Fatal Exception: NSInternalInconsistencyException this request has been neutered - you can't call -sendResponse: twice nor after encoding it +[_CFXNotificationTokenRegistration keyCallbacks]
Fatal Exception: NSInternalInconsistencyException
0 CoreFoundation 0x1c2726ab8 __exceptionPreprocess
1 libobjc.A.dylib 0x1c192bd00 objc_exception_throw
2 CoreFoundation 0x1c263be90 +[_CFXNotificationTokenRegistration keyCallbacks]
3 Foundation 0x1c3117cfc -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]
4 BaseBoard 0x1c4f2e664 __40-[BSAction sendResponse:withCompletion:]_block_invoke
5 libdispatch.dylib 0x1c2135888 _dispatch_client_callout
6 libdispatch.dylib 0x1c2142404 _dispatch_lane_barrier_sync_invoke_and_complete
7 BaseBoard 0x1c4ee2b84 -[BSAction sendResponse:withCompletion:]
8 UIKitCore 0x1ef72bf84 -[UIHandleRemoteNotificationAction sendResponse:]
9 UIKitCore 0x1efb69028 __91-[UIApplication _handleNonLaunchSpecificActions:forScene:withTransitionContext:completion:]_block_invoke_3.2678
10 UIKitCore 0x1efb69b4c __125-[UIApplication _updateStateRestorationArchiveForBackgroundEvent:saveState:exitIfCouldNotRestoreState:updateSnapshot:canvas:]_block_invoke_2
11 libdispatch.dylib 0x1c2134308 _dispatch_call_block_and_release
12 libdispatch.dylib 0x1c2135888 _dispatch_client_callout
13 libdispatch.dylib 0x1c214173c _dispatch_main_queue_callback_4CF
14 CoreFoundation 0x1c26b6734 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
15 CoreFoundation 0x1c26b13e4 __CFRunLoopRun
16 CoreFoundation 0x1c26b0964 CFRunLoopRunSpecific
17 GraphicsServices 0x1c48f1d8c GSEventRunModal
18 UIKitCore 0x1efb51758 UIApplicationMain
19 XXXX 0x1023e1480 main + 26 (AppDelegate.swift:26)
20 libdyld.dylib 0x1c216cfd8 start
Crashed: com.twitter.crashlytics.ios.exception
0 XXXX 0x102692000 CLSProcessRecordAllThreads + 4305018880
1 XXXX 0x1026923e8 CLSProcessRecordAllThreads + 4305019880
2 XXXX 0x102681c60 CLSHandler + 4304952416
3 XXXX 0x102690604 __CLSExceptionRecord_block_invoke + 4305012228
4 libdispatch.dylib 0x1c2135888 _dispatch_client_callout + 20
5 libdispatch.dylib 0x1c2142404 _dispatch_lane_barrier_sync_invoke_and_complete + 60
6 XXXX 0x102690070 CLSExceptionRecord + 4305010800
7 XXXX 0x10268fe9c CLSExceptionRecordNSException + 4305010332
8 XXXX 0x10268fa90 CLSTerminateHandler() + 4305009296
9 libc++abi.dylib 0x1c19209cc std::__terminate(void (*)()) + 20
10 libc++abi.dylib 0x1c1920a40 std::terminate() + 60
11 libobjc.A.dylib 0x1c192c09c _destroyAltHandlerList + 14
12 libdispatch.dylib 0x1c213589c _dispatch_client_callout + 40
13 libdispatch.dylib 0x1c2142404 _dispatch_lane_barrier_sync_invoke_and_complete + 60
14 BaseBoard 0x1c4ee2b84 -[BSAction sendResponse:withCompletion:] + 148
15 UIKitCore 0x1ef72bf84 -[UIHandleRemoteNotificationAction sendResponse:] + 148
16 UIKitCore 0x1efb69028 __91-[UIApplication _handleNonLaunchSpecificActions:forScene:withTransitionContext:completion:]_block_invoke_3.2678 + 76
17 UIKitCore 0x1efb69b4c __125-[UIApplication _updateStateRestorationArchiveForBackgroundEvent:saveState:exitIfCouldNotRestoreState:updateSnapshot:canvas:]_block_invoke_2 + 264
18 libdispatch.dylib 0x1c2134308 _dispatch_call_block_and_release + 32
19 libdispatch.dylib 0x1c2135888 _dispatch_client_callout + 20
20 libdispatch.dylib 0x1c214173c _dispatch_main_queue_callback_4CF + 1012
21 CoreFoundation 0x1c26b6734 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
22 CoreFoundation 0x1c26b13e4 __CFRunLoopRun + 1888
23 CoreFoundation 0x1c26b0964 CFRunLoopRunSpecific + 452
24 GraphicsServices 0x1c48f1d8c GSEventRunModal + 108
25 UIKitCore 0x1efb51758 UIApplicationMain + 216
26 XXXX 0x1023e1480 main + 26 (AppDelegate.swift:26)
27 libdyld.dylib 0x1c216cfd8 start + 4