I'm having a watchdog crash issue in the app I'm developing, and it seems to be occurring from inside the combine module.
Incident Identifier: 498E4709-01D9-4334-8218-4F5CAB99B504
Beta Identifier: 2FE8D2AF-8629-4A08-9AC3-30AF7D5C2214
Hardware Model: iPhone14,5
AppStoreTools: 17A323
AppVariant: 1:iPhone14,5:17.4
Beta: YES
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Date/Time: 2025-09-22 10:55:30.4415 +0900
Launch Time: 2025-09-22 10:34:41.0221 +0900
OS Version: iPhone OS 17.7.1 (21H216)
Release Type: User
Baseband Version: 3.50.04
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000001a4459c38
Termination Reason: SIGNAL 5 Trace/BPT trap: 5
Terminating Process: exc handler [4209]
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 Combine 0x1a4459c38 Publishers.Catch.Inner.receivePre(_:) + 284
1 Combine 0x1a4459b10 Publishers.Catch.Inner.UncaughtS.receive(_:) + 24
2 MyApp 0x10cda2040 0x1043d4000 + 144498752
3 MyApp 0x10cdaf384 0x1043d4000 + 144552836
4 Combine 0x1a44bf1bc ClosureBasedAnySubscriber.receive(_:) + 28
5 Combine 0x1a44c0550 protocol witness for Subscriber.receive(_:) in conformance AnySubscriber<A, B> + 56
6 Combine 0x1a4452d98 Publishers.HandleEvents.Inner.receive(_:) + 208
7 Combine 0x1a4452cbc protocol witness for Subscriber.receive(_:) in conformance Publishers.HandleEvents<A>.Inner<A1> + 24
8 Combine 0x1a454c500 Publishers.TryCatch.Inner.receivePre(_:) + 176
9 Combine 0x1a454c444 Publishers.TryCatch.Inner.UncaughtS.receive(_:) + 24
10 Combine 0x1a445a100 Publishers.SwitchToLatest.Outer.receiveInner(_:_:) + 372
11 Combine 0x1a4459f80 Publishers.SwitchToLatest.Outer.Side.receive(_:) + 24
12 Combine 0x1a4459bd0 Publishers.Catch.Inner.receivePre(_:) + 180
13 Combine 0x1a4459b10 Publishers.Catch.Inner.UncaughtS.receive(_:) + 24
14 Combine 0x1a4452d98 Publishers.HandleEvents.Inner.receive(_:) + 208
15 Combine 0x1a4452cbc protocol witness for Subscriber.receive(_:) in conformance Publishers.HandleEvents<A>.Inner<A1> + 24
16 Combine 0x1a445a100 Publishers.SwitchToLatest.Outer.receiveInner(_:_:) + 372
17 Combine 0x1a4459f80 Publishers.SwitchToLatest.Outer.Side.receive(_:) + 24
18 Combine 0x1a4449014 Publishers.Map.Inner.receive(_:) + 204
19 Combine 0x1a4452d98 Publishers.HandleEvents.Inner.receive(_:) + 208
20 Combine 0x1a4452cbc protocol witness for Subscriber.receive(_:) in conformance Publishers.HandleEvents<A>.Inner<A1> + 24
21 Combine 0x1a4469484 Future.Conduit.fulfill(_:) + 1952
22 Combine 0x1a445443c Future.Conduit.offer(_:) + 340
23 Combine 0x1a44542d8 partial apply for closure #1 in Future.promise(_:) + 68
24 Combine 0x1a4451f50 ConduitList.forEach(_:) + 276
25 Combine 0x1a4451aa0 Future.promise(_:) + 1312
26 Combine 0x1a444c3c4 partial apply for closure #1 in Future.init(_:) + 28
27 MyAppCore 0x119d5ca68 0x117414000 + 43289192
28 ReactiveSwift 0x113a8e078 0x113a84000 + 41080
29 ReactiveSwift 0x113abee3c 0x113a84000 + 241212
30 ReactiveSwift 0x113abef58 0x113a84000 + 241496
31 ReactiveSwift 0x113ab2dc0 Signal.Observer.send(_:) + 20
32 ReactiveSwift 0x113aa37c4 0x113a84000 + 128964
33 ReactiveSwift 0x113abecec Signal.Observer.send(value:) + 136
34 ReactiveSwift 0x113af4d88 0x113a84000 + 462216
35 ReactiveSwift 0x113ade670 0x113a84000 + 370288
36 ReactiveSwift 0x113ab2dc0 Signal.Observer.send(_:) + 20
37 ReactiveSwift 0x113a8c544 0x113a84000 + 34116
38 ReactiveSwift 0x113abecec Signal.Observer.send(value:) + 136
39 MyAppCore 0x11755fbb4 0x117414000 + 1358772
40 ReactiveSwift 0x113ae3b30 0x113a84000 + 391984
41 ReactiveSwift 0x113ae4528 0x113a84000 + 394536
42 libdispatch.dylib 0x1a2f2d13c _dispatch_call_block_and_release + 32
43 libdispatch.dylib 0x1a2f2edd4 _dispatch_client_callout + 20
44 libdispatch.dylib 0x1a2f3d5a4 _dispatch_main_queue_drain + 988
45 libdispatch.dylib 0x1a2f3d1b8 _dispatch_main_queue_callback_4CF + 44
46 CoreFoundation 0x19b0576f0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
47 CoreFoundation 0x19b0548f4 __CFRunLoopRun + 1996
48 CoreFoundation 0x19b053cb8 CFRunLoopRunSpecific + 608
49 GraphicsServices 0x1dfaa91a8 GSEventRunModal + 164
50 UIKitCore 0x19d68eae8 -[UIApplication _run] + 888
51 UIKitCore 0x19d742d98 UIApplicationMain + 340
52 UIKitCore 0x19d8bc504 0x19d284000 + 6522116
53 MyApp 0x10544402c 0x1043d4000 + 17236012
54 dyld 0x1be834154 start + 2356