Thread 1 Queue : com.apple.main-thread (serial)
#0	0x00000001b13f248c in objc_msgSend ()
#1	0x00000001cd19a778 in -[EAAccessoryManager _notifyObserversThatAccessoryDisconnectedWithUserInfo:] ()
#2	0x00000001cd19ce50 in -[EAAccessoryManager _externalAccessoryDisconnected:] ()
#3	0x00000001bc07e390 in __54-[ACCExternalAccessoryProvider ExternalAccessoryLeft:]_block_invoke ()
#4	0x000000010365fce4 in _dispatch_call_block_and_release ()
#5	0x0000000103661528 in _dispatch_client_callout ()
#6	0x000000010366f994 in _dispatch_main_queue_callback_4CF ()
#7	0x000000019d9c55d0 in __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ ()
#8	0x000000019d9bfa78 in __CFRunLoopRun ()
#9	0x000000019d9beb90 in CFRunLoopRunSpecific ()
#10	0x00000001b3ce1598 in GSEventRunModal ()
#11	0x00000001a02a8638 in -[UIApplication _run] ()
#12	0x00000001a02adbb8 in UIApplicationMain ()
#13	0x0000000102456760 in main at AppDelegate.swift:13
#14	0x000000019d69d588 in start ()
Enqueued from com.apple.NSXPCConnection.m-user.com.apple.accessories.externalaccessory-server (Thread 15) Queue : com.apple.NSXPCConnection.m-user.com.apple.accessories.externalaccessory-server (serial)