I'm trying to read a tag generated by my app that emulates event input tags; in my NFC reader app and I get this error: <NSXPCConnection: 0x300a108c0> connection to service with pid 62 named com.apple.nfcd.service.corenfc: Exception caught during decoding of received selector didDetectExternalReaderWithNotification:, dropping incoming message. Exception: Exception while decoding argument 0 (#2 of invocation): Exception: decodeObjectForKey: class "NFFieldNotificationECP1_0" not loaded or does not exist ( 0 CoreFoundation 0x0000000192b00f2c 76A3B198-3C09-323E-8359-0D4978E156F5 + 540460 1 libobjc.A.dylib 0x000000018a9a32b8 objc_exception_throw + 60 2 Foundation 0x0000000191932584 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 38276 3 Foundation 0x0000000191930d10 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 32016 4 Foundation 0x000000019198f460 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 418912 5 Foundation 0x000000019198c510 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 406800 6 Foundation 0x00000001919e4cf4 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 769268 7 Foundation 0x00000001919e3a60 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 764512 8 Foundation 0x00000001919e31c4 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 762308 9 Foundation 0x00000001919e307c D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 761980 10 libxpc.dylib 0x00000001ef5a1cbc CD0F76A8-713A-3FDB-877E-386B089BC2D1 + 72892 11 libxpc.dylib 0x00000001ef5a3908 CD0F76A8-713A-3FDB-877E-386B089BC2D1 + 80136 12 libdispatch.dylib 0x000000010401e87c _dispatch_client_callout4 + 20 13 libdispatch.dylib 0x000000010403bec4 _dispatch_mach_msg_invoke + 516 14 libdispatch.dylib 0x00000001040264a4 _dispatch_lane_serial_drain + 376 15 libdispatch.dylib 0x000000010403cea8 _dispatch_mach_invoke + 480 16 libdispatch.dylib 0x00000001040264a4 _dispatch_lane_serial_drain + 376 17 libdispatch.dylib 0x000000010402743c _dispatch_lane_invoke + 460 18 libdispatch.dylib 0x0000000104034404 _dispatch_root_queue_drain_deferred_wlh + 328 19 libdispatch.dylib 0x0000000104033a38 _dispatch_workloop_worker_thread + 444 20 libsystem_pthread.dylib 0x00000001ef550934 _pthread_wqthread + 288 21 libsystem_pthread.dylib 0x00000001ef54d0cc start_wqthread + 8 ) ( 0 CoreFoundation 0x0000000192b00f2c 76A3B198-3C09-323E-8359-0D4978E156F5 + 540460 1 libobjc.A.dylib 0x000000018a9a32b8 objc_exception_throw + 60 2 Foundation 0x000000019198f680 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 419456 3 Foundation 0x000000019198c510 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 406800 4 Foundation 0x00000001919e4cf4 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 769268 5 Foundation 0x00000001919e3a60 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 764512 6 Foundation 0x00000001919e31c4 D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 762308 7 Foundation 0x00000001919e307c D27A6EC5-943C-3B0E-8D15-8840FD2914F0 + 761980 8 libxpc.dylib 0x00000001ef5a1cbc CD0F76A8-713A-3FDB-877E-386B089BC2D1 + 72892 9 libxpc.dylib 0x00000001ef5a3908 CD0F76A8-713A-3FDB-877E-386B089BC2D1 + 80136 10 libdispatch.dylib 0x000000010401e87c _dispatch_client_callout4 + 20 11 libdispatch.dylib 0x000000010403bec4 _dispatch_mach_msg_invoke + 516 12 libdispatch.dylib 0x00000001040264a4 _dispatch_lane_serial_drain + 376 13 libdispatch.dylib 0x000000010403cea8 _dispatch_mach_invoke + 480 14 libdispatch.dylib 0x00000001040264a4 _dispatch_lane_serial_drain + 376 15 libdispatch.dylib 0x000000010402743c _dispatch_lane_invoke + 460 16 libdispatch.dylib 0x0000000104034404 _dispatch_root_queue_drain_deferred_wlh + 328 17 libdispatch.dylib 0x0000000104033a38 _dispatch_workloop_worker_thread + 444 18 libsystem_pthread.dylib 0x00000001ef550934 _pthread_wqthread + 288 19 libsystem_pthread.dylib 0x00000001ef54d0cc start_wqthread + 8 )

I'm developing a ticket app with Host card emulation. The session starts correctly the first time, but when trying to emulate a second ticket, after the first one has been read by the reader, or after the emulation has been canceled by the user, it doesn't work correctly for a while. This is my CardSessionManager: import CoreNFC @available(iOS 17.4, *) class CardSessionManager { private static var cardSession: CardSession? = nil private static var presentmentIntent: NFCPresentmentIntentAssertion? = nil static func initCardSession(_ accessCode: String) { cardSession?.invalidate() cardSession = nil let ProcessAPDU: (_: Data) -> Data = { capdu in var response = Data(accessCode.utf8) response.append(0x90) response.append(0x00) return response } Task { guard NFCReaderSession.readingAvailable, CardSession.isSupported, await CardSession.isEligible else { return } do { presentmentIntent = try await NFCPresentmentIntentAssertion.acquire() cardSession = try await CardSession() } catch { return } if let cardSession { for try await event in cardSession.eventStream { switch event { case .sessionStarted: cardSession.alertMessage = String(localized: "Searching reader...") try await cardSession.startEmulation() case .readerDetected: cardSession.alertMessage = String(localized: "Reading...") case .readerDeselected: cardSession.alertMessage = String(localized: "Successful reading!") await cardSession.stopEmulation(status: .success) case .received(let cardAPDU): cardSession.alertMessage = String(localized: "Communicating with reader.") do { try await cardAPDU.respond(response: ProcessAPDU(cardAPDU.payload)) } catch { cardSession.alertMessage = error.localizedDescription } case .sessionInvalidated(reason: _): cardSession.alertMessage = String(localized: "Ending communication with reader.") presentmentIntent = nil @unknown default: break } } } } } }