Overview

Hi， Apps crashed when GCDAsyncSocket closeWithError，since iOS 16 。 Crash stack like this： Hardware Model: iPhone10,1 Code Type: ARM-64 (Native) Parent Process: [1] Date/Time: 2022-06-09 08:59:02.201 +0800 OS Version: 16.0 (20A5283p) Report Version: 104 Last Exception : 0 libsystem_platform.dylib 0x000000021bc1f08c 0x000000021bc19000 + 24716 1 libsystem_platform.dylib 0x000000021bc19898 0x000000021bc19000 + 2200 2 CoreFoundation 0x00000001a4dfa3e0 CFSocketInvalidate + 132 3 CFNetwork 0x00000001a5667830 _CFNetworkErrorGetLocalizedDescription + 307856 4 CoreFoundation 0x00000001a4d55f4c CFArrayApplyFunction + 72 5 CFNetwork 0x00000001a56453ac _CFNetworkErrorGetLocalizedDescription + 167436 6 CoreFoundation 0x00000001a4d5d118 0x00000001a4d49000 + 82200 7 CoreFoundation 0x00000001a4dfa718 CFSocketInvalidate + 956 8 CFNetwork 0x00000001a5651e84 _CFNetworkErrorGetLocalizedDescription + 219364 9 CoreFoundation 0x00000001a4d631d4 0x00000001a4d49000 + 106964 10 *** 0x000000010c1bc490 -[GCDAsyncSocket closeWithError:] + 260 11 *** 0x000000010c1c0b54 -[GCDAsyncSocket doReadEOF] + 360 12 *** 0x000000010c1bf1fc __69-[GCDAsyncSocket setupReadAndWriteSourcesForNewlyConnectedSocket:]_block_invoke + 88 13 libdispatch.dylib 0x00000001a4a330f4 0x00000001a4a2f000 + 16628 14 libdispatch.dylib 0x00000001a4a36584 0x00000001a4a2f000 + 30084 15 libdispatch.dylib 0x00000001a4a49b04 0x00000001a4a2f000 + 109316 16 libdispatch.dylib 0x00000001a4a3a684 0x00000001a4a2f000 + 46724 17 libdispatch.dylib 0x00000001a4a3b2f8 0x00000001a4a2f000 + 49912 18 libdispatch.dylib 0x00000001a4a45ebc 0x00000001a4a2f000 + 93884 19 libsystem_pthread.dylib 0x000000021bc210a8 _pthread_wqthread + 288

XPC is the preferred inter-process communication (IPC) mechanism on Apple platforms. XPC has three APIs: The high-level NSXPCConnection API, for Objective-C and Swift The low-level Swift API, introduced with macOS 14 The low-level C API, which, while callable from all languages, works best with C-based languages General: Forums subtopic: App & System Services > Processes & Concurrency Forums tag: XPC Creating XPC services documentation NSXPCConnection class documentation Low-level API documentation XPC has extensive man pages — For the low-level API, start with the xpc man page; this is the original source for the XPC C API documentation and still contains titbits that you can’t find elsewhere. Also read the xpcservice.plist man page, which documents the property list format used by XPC services. Daemons and Services Programming Guide archived documentation WWDC 2012 Session 241 Cocoa Interprocess Communication with XPC — This is no longer available from the Apple Developer website )-: Technote 2083 Daemons and Agents — It hasn’t been updated in… well… decades, but it’s still remarkably relevant. TN3113 Testing and Debugging XPC Code With an Anonymous Listener technote XPC and App-to-App Communication forums post Validating Signature Of XPC Process forums post This forums post summarises the options for bidirectional communication This forums post explains the meaning of the privileged flag XPC is mostly used on macOS but there are a few places where it comes into play on iOS: File Provider extensions can export an XPC service to arbitrary apps. For more about the File Provider side of this, see the NSFileProviderServiceSource protocol. For more about the client side, see the NSFileProviderService class. An app can move part of its code into a helper extension and talk to it using XPC. See Creating enhanced security helper extensions. Alternative browser engines can do a similar thing. See BrowserEngineKit for more about this. Apps with embedded extensions can use XPC via ExtensionFoundation. (Note that on iOS, but not macOS, an app can only use extensions embedded within the app itself.) Related tags include: Inter-process communication, for other IPC mechanisms Service Management, for installing and uninstalling Service Management login items, launchd agents, and launchd daemons Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com"

I am seriously taken aback by the efficiency of the App Review team. Jul 8, 2022 at 2:46 PM - We submitted our app on this date. Jul 9, 2022 at 10.47 AM - Our app was rejected due to 5.1.1 Legal - Data Collection and Storage. Jul 9, 2022 at 1.02 PM - I provided detailed information in relation to our business being in a highly regulated industry. Jul 13, 2022 at 8.22 AM - App Review Team replied stating that additional time is required to review. App Review status was changed to App In Review. Jul 13, 2022 at 8.36 AM - I received the same message that the issue previously identified requires our attention. Jul 13, 2022 at 1.42 PM - I replied again that information has been provided and it was confusing to have received another same App Rejection message. I contacted the App Review Team for assistance and was assured that my app will be reviewed. Jul 14, 2022 at 9.57 AM - App Review team replied that the team will continue the review and will notify if there are any further issues. 27 Jul, 2022 at 3.10 AM - App Review team replied with the same rejection message again "The issues we previously identified still need your attention..." 27 Jul, 2022 at 4.05 AM - I replied explaining that this is the 3rd time App Review team provided the same, non-helpful message and I have provided the information right from the start. 28 Jul, 2022 at 10.27 AM - App Review team replied with the same message intent explaining the policy and requested for additional information AGAIN. 28 Jul, 2022 at 10.40 AM - I replied with FRUSTRATION, providing my detail explanation and information once again (which was already provided on the Jul 9, 2022, 1.02 PM). This app has been withheld since Jul 8. Another app of ours was approved merely after 2 days of submission with the similar additional information provided in the submission notes. The App Review team has been very UNHELPFUL by replying templated messages. I am not sure the team reads through the trail of communications. Many time and money has been wasted when we had to go back to our legal advisors. I need proper avenues to get this push through. Is this a common poor attitude and service of the App Review team? Can someone from the App Review team shed some light on this?

Hello together, I'm currently trying to implement a simple way to use the new LOM commands for our new mac infrastructure. My MDM sollution is a custom instance of MicroMDM. MDM profiles are working fine, but when I send a https://developer.apple.com/documentation/devicemanagement/lom_device_request_command with any command (Reset, PowerON, PowerOFF), then it doesn't reset/restart/start the target Mac. Host X has a device profile and host Y a controller profile. Host/Mac Y = fe80::YYYY:YYYY:YYYY:8608 Host/Mac X = fe80::XX:XXXX:XXXX:cfab Now, if I send a LOM request for Mac Y to reset Mac X, I get the error "Address already in use" on Mac X (logs via log stream) log stream (private logs) And wireshark on Mac X shows there is traffic, but MacX does not respond to anything, not even tcp syn packages. This error is really weird, because there are no special ports running on that mac and I don't know what Port lightsoutmanagementd tries to listen to. lsof | grep LISTEN | grep -i ipv6 launchd 1 root 7u IPv6 0x457f571ac3303fd7 0t0 TCP *:ssh (LISTEN) launchd 1 root 11u IPv6 0x457f571ac33015d7 0t0 TCP *:rfb (LISTEN) launchd 1 root 27u IPv6 0x457f571ac3303fd7 0t0 TCP *:ssh (LISTEN) lightsout 112 root 4u IPv6 0x457f571ac3302ad7 0t0 TCP *:55555 (LISTEN) kdc 143 root 5u IPv6 0x457f571ac33023d7 0t0 TCP *:kerberos (LISTEN) screensha 403 root fp.u IPv6 0x457f571ac33015d7 0t0 TCP *:rfb (LISTEN) (fileport=0x2103) screensha 403 root 3u IPv6 0x457f571ac33015d7 0t0 TCP *:rfb (LISTEN) ARDAgent 535 devops 9u IPv6 0x457f571ac33031d7 0t0 TCP *:net-assistant (LISTEN) Did anyone have the same problem, or maybe can hint me in the right direction? I currently don't have a clue, what I can do next.

When I tap on one of the buttons in the ShieldAction extension I want to close the shield and open the parent app instead of the shielded app. Is there any way of doing this using the Screen Time API? class ShieldActionExtension: ShieldActionDelegate {      override func handle(action: ShieldAction, for application: ApplicationToken, completionHandler: @escaping (ShieldActionResponse) -> Void) {     // Handle the action as needed.           let store = ManagedSettingsStore()               switch action {     case .primaryButtonPressed:       //TODO - open parent app       completionHandler(.defer)     case .secondaryButtonPressed:       //remove shield       store.shield.applications?.remove(application)       completionHandler(.defer)         @unknown default:       fatalError()     }   }   }

I am trying on iOS 16.1.1 the Nearby Interaction framework. I am testing it on two iPhones 14 Pro Max. The supportsDirectionMeasurement property returns false (!) and the direction property on the NINearbyObjects is nil. Has someone experienced the same issue?

Hello, I am getting the following errors when building a Mac Camera Extension with web sockets. I am using URLSessionWebsocketTask as my web socket library. I built a test program for my code and in there I can see my web sockets are working properly, but when I run it from the System Extension I get the following errors. The socket opens for two - three messages then crashes. I couldnt find any documentation online for the following errors CMIOExtensionProvider.m:1975:-[CMIOExtensionProvider removeProviderContext:]_block_invoke Unregistered provider context <CMIOExtensionProviderContext: ->, don't be surprised if things go badly CMIOExtensionProviderContext.m:64:-[CMIOExtensionProviderContext initWithConnection:]_block_invoke [391] received Connection invalid``

In App Store Connect I've uploaded a new build about 11 hours ago and but I'm unable to distribute the App to my tester groups - including internal. The internal group is grayed out. I am able to Select an External group but they actually do not receive any email notification nor do they see any update within their TestFlight App. I've attempted to upload the build a few times, including old builds which had been distributed in the past to no avail. I'm not able to distribute to any tester group, please advise.

Some capabilities include distribution restriction. For example, you might be able to use the capability for day-to-day development but have to get additional approval to publish an app using that capability to the App Store. To tell if a capability has such a restriction: Go to Developer > Account. At the top right, make sure you’re logged in as the right team. Under Certificates, IDs & Profiles, click Identifiers. Find the App ID you’re working with and click it. IMPORTANT Some managed capabilities are granted on a per-App ID basis, so make sure you choose the right App ID here. This brings up the App ID editor. In the Capabilities tab, locate the capability you’re working with. Click the little info (i) button next to the capability. The resulting popover lists the supported platforms and distribution channels for that capability. For example, the following shows that the standard Family Controls (Development) capability, which authorises use of the com.apple.developer.family-controls entitlement, is only enabled for development on iOS and visionOS. In contrast, if you’ve been granted distribution access to this capability, you’ll see a different Family Controls (Distribution) capability. Its popover shows that you can use the capability for App Store Connect and Ad Hoc distribution, as well as day-to-day development, on both iOS and visionOS. In the Family Controls example the development-only capability is available to all developers. However, restrictions like this can apply to initially managed capabilities, that is, managed capabilities where you have to apply to use the capability just to get started with your development. For example, when you apply for the Endpoint Security capability, which authorises use of the com.apple.developer.endpoint-security.client entitlement, it’s typically granted for development only. If you want to distribute a product using that capability, you must re-apply for another capability that authorises Developer ID distribution [1]. Some folks encounter problems like this because their managed capability was incorrectly granted. For example, you might have applied for a managed capability from an Organization team but it was granted as if you were an Enterprise team. In this case the popover will show In House where you’d expect it to show App Store Connect. If you’ve believe that you were granted a managed capability for the wrong distribution channel, contact the folks who granted you that capability. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com" [1] Endpoint Security clients must use independent distribution; they are not accepted in the Mac App Store. Revision History 2026-03-10 Updated to account for changes on the Apple Developer website. 2022-12-09 First posted.

All of our uses of CFSockets have started causing crashes in iOS 16. They seem to be deprecated so we are trying to transition over to using the Network framework and NWConnection to try to fix the crashes. One of our uses of them is to ping a device on the local network to make sure it is there and online and provide a heartbeat status in logs as well as put the application into a disabled state if it is not available as it is critical to the functionality of the app. I know it is discouraged to disable any functionality based on the reachability of a resource but this is in an enterprise environment where the reachability of this device is mission critical. I've seen other people ask about the ability to ping with the Network framework and the answers I've found have said that this is not possible and pointed people to the SimplePing sample code but it turns out our existing ping code is already using this technique and it is crashing just like our other CFSocket usages, inside CFSocketInvalidate with the error BUG IN CLIENT OF LIBPLATFORM: Trying to recursively lock an os_unfair_lock. Is there any updated way to perform a ping without using the CFSocket APIs that now seem to be broken/unsupported on iOS 16?

I am trying to upload an App Preview to App Store Connect for a iphone app,I created the preview as an "App Preview". When I try to upload the app preview I get the message " your app preview is too big". The preview is 30 sec. It is 6 MB in size. MP4 format. Who know how to change my app preview

I'm getting Crashlytics crashes from some my users, deep in the Apple code: Crashed: AXSpeech EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x00000007ec54b360 0 libobjc.A.dylib 0x3c9c objc_retain_x8 + 16 1 AudioToolboxCore 0x99580 auoop::RenderPipeUser::~RenderPipeUser() + 112 2 AudioToolboxCore 0xe6090 -[AUAudioUnit_XPC internalDeallocateRenderResources] + 92 3 AVFAudio 0x90a0 AUInterfaceBaseV3::Uninitialize() + 60 4 AVFAudio 0x4cbe0 AVAudioEngineGraph::PerformCommand(AUGraphNodeBaseV3&, AVAudioEngineGraph::ENodeCommand, void*, unsigned int) const + 768 5 AVFAudio 0x56b0c AVAudioEngineGraph::_Uninitialize(NSError**) + 132 6 AVFAudio 0x7834 AVAudioEngineImpl::Stop(NSError**) + 388 7 AVFAudio 0x636c -[AVAudioEngine dealloc] + 52 8 TextToSpeech 0x30674 _TTSNameForVoiceInformation + 20864 9 libobjc.A.dylib 0x20a4 object_cxxDestructFromClass(objc_object*, objc_class*) + 116 10 libobjc.A.dylib 0x6e00 objc_destructInstance + 80 11 libobjc.A.dylib 0x104fc _objc_rootDealloc + 80 12 TextToSpeech 0x2d2f4 _TTSNameForVoiceInformation + 7680 13 TextToSpeech 0x496c TTSVocalizerCopyURLForFallbackResource + 8540 14 TextToSpeech 0x26094 TTSSpeechUnitTestingMode + 5548 15 libAXSpeechManager.dylib 0x108b0 -[AXSpeechManager .cxx_destruct] + 192 16 libobjc.A.dylib 0x20a4 object_cxxDestructFromClass(objc_object*, objc_class*) + 116 17 libobjc.A.dylib 0x6e00 objc_destructInstance + 80 18 libobjc.A.dylib 0x104fc _objc_rootDealloc + 80 19 libAXSpeechManager.dylib 0x5298 -[AXSpeechManager dealloc] + 268 20 Foundation 0x3b8a4 __NSThreadPerformPerform + 272 21 CoreFoundation 0xd3208 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 22 CoreFoundation 0xdf864 __CFRunLoopDoSource0 + 176 23 CoreFoundation 0x646c8 __CFRunLoopDoSources0 + 244 24 CoreFoundation 0x7a1c4 __CFRunLoopRun + 828 25 CoreFoundation 0x7f4dc CFRunLoopRunSpecific + 612 26 Foundation 0x420c4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 27 libAXSpeechManager.dylib 0x13390 -[AXSpeechThread main] + 552 28 Foundation 0x5b634 __NSThread__start__ + 716 29 libsystem_pthread.dylib 0x16b8 _pthread_start + 148 30 libsystem_pthread.dylib 0xb88 thread_start + 8 It's most likely related to my use of AVSpeechSynthesizer. I do change some of the utterance fields, including the voice that's being used (which is set to a value from speechVoices()). UtilAudioIos_tts = AVSpeechSynthesizer() let utterance = AVSpeechUtterance utterance.voice = AVSpeechSynthesisVoice(identifier: voice.voiceCode) utterance.volume = volume utterance.pitchMultiplier = pitch utterance.rate = rate UtilAudioIos_tts!.speak(utterance) By coincidence or not, the following sometimes appears in the device log: 2023-05-30 20:35:29.948078+0100 <appname>[466:12882] [catalog] Unable to list voice folder and also, sometimes: 2023-05-30 20:37:35.345933+0100 <appname>[466:13298] [catalog] Query for com.apple.MobileAsset.VoiceServices.VoiceResources failed: 2 2023-05-30 20:37:35.360854+0100 rehearserfree[466:13433] [AXTTSCommon] MauiVocalizer: 11006 (Can't compile rule): regularExpression=\Oviedo(?=, (\x1b\\pause=\d+\\)?Florida)\b, message=unrecognized character follows \, characterPosition=1 2023-05-30 20:37:35.363163+0100 <appname>[466:13433] [AXTTSCommon] MauiVocalizer: 16038 (Resource load failed): component=ttt/re, uri=, contentType=application/x-vocalizer-rettt+text, lhError=88602000 2023-05-30 20:37:35.363182+0100 <appname>[466:13433] [AXTTSCommon] Error loading rules: 2147483648 All of these crashes have been on the various versions of iOS 16. Edit: I can't reproduce the crash myself - it's just some (not all) app users. The log entries above appear locally on my device (with no crash) but I can't see the logs of the users who have the crashes. Any idea what this might be caused by, or how to go about tracking the problem down?

We recently developed the provisional permission for our app, but we have noticed that is not working as expected in iOS 16 (We have tested only there). Currently we request the permissions like this: UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound, .provisional]) { [weak self] _, _ in // here we register for pushes in case authorizationStatus is provisional or authorised } What happens is we do get the 1st notification with the keep CTA - once tapped we see that there pops an action: "Deliver Immediately", but even though the user selects that, we still see under setting the pushes are marked as "Deliver Quietly". In addition to this the sound and bage still stay as toggled off - and the lock screen and banner as well stay off. Basically, nothing changes after the user selects "Deliver Immediately"

We are launching a new app with a subscription in-app purchase (IAP). The Status of the IAP is "Waiting for Review". We want to submit the app to app for review, but the section to select an IAP with the app is not appearing. According to online sources, if we submit a new app for review, without selecting the IAP that goes with it, then the app may be released in the App Store without users being able to purchase the IAP. This actually happened to us years ago and I can't remember how we got around it, but it was painful. It seems strange that Apple would allow this problem to persist for years. Why not just hire an intern to fix it? Maybe because they are too busy running around in circles at the new spaceship headquarters. Regardless, our IAP has been sitting in "Waiting for Review" status for a while now and I'm concerned it may never be approved. Any advice would be appreciated.

I've been trying to build an example of NSStagedMigrationManager from some Core Data migration tests to replace a custom migration manager solution I'd constructed, without much success. The Core Data model has seven model versions. Most support lightweight migration, but two of the migrations in the middle of the sequence used NSMappingModel. In the first beta, just attempting to construct an NSStagedMigrationManager from the series of stages failed with an unrecognized selector. That no longer happens in b4, but I now get an error that "Duplicate version checksums across stages detected." If I restrict myself to just the first three versions of the model (that only require lightweight migration), I can build the migration manager. But if I attempt to use it to migrate a persistent store, it fails somewhere in NSPersistentStoreCoordinator with a nilError. The documentation is almost nonexistent for this process, and the WWDC session that introduced it isn't much more than a breezy overview. So maybe I'm holding it wrong? (And, yes: FB12339663)

I'm struggling to build a driver for iPadOS in a particular project configuration. If I put the driver code and dext target into the same Xcode project which contains the iPad app, all is well. This is the way the Xcode driver template does it. However, I'd like to build and debug the dext on macOS, while eventually deploying on iPadOS. So I put the dext into a different project, which has a macOS target, a minimal iPadOS target and a DriverKit target. I made a workspace which contains both projects. I dragged the macOS project into the iPadOS project so that I can refer to the products of the macOS project (specifically, its driver target) as a dependency of the iPadOS target. Note that the main iPad app target depends on the driver target. So the workspace organization looks like this: Workspace iPad project main iPad app target (depends on driver) test project reference test project test macOS/iPad app target DriverKit dext target When I build the iPadOS target, it builds the dependent driver target in the macOS project, but it fails to link because Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/15.0.0/lib/darwin/libclang_rt.profile_driverkit.a is not found. If I just build the driver target directly in Xcode, there is no such complaint. I looked closely at the build logs, and I see for the failed link, there are these two linker flags set which are not set in the successful case -debug_variant -fprofile-instr-generate I can't seem to control the generation of this flag. I tried turning off the Profile switch in the Scheme editor for the driver, but is makes no difference. When I directly build the driver target, no -fprofile-instr-generate is set and it compiles and links. When i build the driver as a dependency of another target, -fprofile-instr-generate is passed to the linker, which fails. The obvious workaround is to put the driver source code into a separate driver target in the iPadOS project, but I'd rather have just one DriverKit driver for both platforms, with a few settings (such as bundle ID) controlled by a configuration file. Has anyone else encountered this problem, and know of a workaround?

My Apple Developer Program Enrollment has been under review for over 6 weeks, and it is inside of the United States. Initially, I was informed that the Apple team would review the application and get back to us in 2 business days. However, I have not received any updates or resolutions since that initial communication. I have reached out to Apple Developer Support many times, and they told me that they cannot provide any updates and advised me to "simply wait." This delay is causing significant disruptions to our development timeline and impacting our business operations. Any idea of what I can do? I would greatly appreciate any insights from the community on how to address this situation effectively. Thank you so much!

Hi everyone, I'm the owner of a radio station called Radio Krimi and we have an official APP on iOS but because the technician, don't replied anymore to our message, we would like to update it with a new audio link. Then deeply sorry but I really don't know how to do it, basically it sould be easy because is a just a new link instead an old one. Please someone could help us with the process ? Thanks a lot ! Seb https://apps.apple.com/fr/app/radio-krimi/id1034088733

I've read several topics on cancelling subscriptions in sandbox environment, but it seems to me that it could not be applied to TestFlight. I can cancel sandbox subscriptions through Settings > App Store > Sandbox account But since TestFlight does not use sandbox account I cannot cancel a sub from there. Also, TF purchase does not appear in the list of regular subscriptions (Settings > Profile > Media & Purchases). So my question is: is there any way to manually cancel auto-renewable subscription bought in TestFlight build of the app?

I have received a few crash reports for my app "Find Any File" with an assertion failure as follows: assertion failure: "displayTiming != ((void *)0)" -&gt; %lld Googling this turns up nothing, though. I wonder if someone has some insight into why this might happen, and how to prevent it. One reporting user suggests that it happens when my app shows a very long list of items in an NSTableView (&gt;10000 elements). I have 4 reports from 3 users, and the main thread is doing something related to the table view each time, though not the same (the few other threads are all idle): Crash 1, in macOS 14.0 (23A344: Thread 0:: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x182c69400 objc_msgSend + 0 1 AppKit 0x186f15400 -[CALayer(NSViewVisibleRect) NS_viewVisibleRectDidChange] + 40 2 AppKit 0x186900e10 NSViewHierarchyInvalidateVisibleRect + 276 3 AppKit 0x186900db0 NSViewHierarchyInvalidateVisibleRect + 180 4 AppKit 0x186900db0 NSViewHierarchyInvalidateVisibleRect + 180 5 AppKit 0x186900db0 NSViewHierarchyInvalidateVisibleRect + 180 6 AppKit 0x186900db0 NSViewHierarchyInvalidateVisibleRect + 180 7 AppKit 0x186900db0 NSViewHierarchyInvalidateVisibleRect + 180 8 AppKit 0x1869990e0 -[NSView translateOriginToPoint:] + 164 9 AppKit 0x186984108 -[NSClipView _immediateScrollToPoint:] + 420 10 AppKit 0x186983eb8 -[NSClipView scrollToPoint:] + 184 11 AppKit 0x186998d80 -[NSScrollView scrollClipView:toPoint:] + 84 12 AppKit 0x1869448dc -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:] + 480 13 AppKit 0x186b65b24 __62-[NSScrollingBehaviorConcurrentVBL _stopGestureScrollTracking]_block_invoke + 192 14 AppKit 0x186e6a6e8 ___NSMainRunLoopPerformBlockInModes_block_invoke + 44 15 CoreFoundation 0x18310b8c0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 28 Crash 2, in macOS 14.1.1 (23B81): Thread 0:: Dispatch queue: com.apple.main-thread 0 CoreFoundation 0x18ba401f4 DYLD-STUB$$_Block_object_assign + 0 1 libsystem_blocks.dylib 0x18b506118 _call_copy_helpers_excp + 80 2 libsystem_blocks.dylib 0x18b505c68 _Block_copy + 376 3 libdispatch.dylib 0x18b641c7c _dispatch_Block_copy + 32 4 libdispatch.dylib 0x18b658df0 _dispatch_source_set_handler + 92 5 CoreFoundation 0x18b99e1e4 __CFRunLoopCopyMode + 540 6 CoreFoundation 0x18b8b7458 CFRunLoopAddObserver + 220 7 AppKit 0x18f0a687c _PerfAddRunLoopObserver + 192 8 AppKit 0x18f87cd60 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 368 9 AppKit 0x18f323318 -[_NSScrollingConcurrentEventMonitor startMonitoring] + 380 10 AppKit 0x18f321df8 -[NSScrollingBehaviorConcurrentVBL _scrollView:trackGestureScrollWithEvent:] + 884 11 AppKit 0x18f2e67f8 -[NSScrollingBehaviorConcurrentVBL scrollView:scrollWheelWithEvent:] + 512 12 AppKit 0x18f241770 forwardMethod + 252 13 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 14 AppKit 0x18f241770 forwardMethod + 252 15 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 16 AppKit 0x18f241770 forwardMethod + 252 17 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 18 AppKit 0x18f241770 forwardMethod + 252 19 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 20 AppKit 0x18fc45880 -[NSCollectionView scrollWheel:] + 180 21 AppKit 0x18f241770 forwardMethod + 252 22 AppKit 0x18f241770 forwardMethod + 252 23 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 24 AppKit 0x18f241770 forwardMethod + 252 25 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 26 AppKit 0x18f241770 forwardMethod + 252 27 AppKit 0x18f2e62a0 -[NSView scrollWheel:] + 408 28 AppKit 0x18f1d27b0 -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 652 As you can see, there's no code of mine involved at the time of crash. The other (and older) reports are similar, in macOS 13.6.1 and macOS 13.1. All four happened on ARM architecture (which may not be significant due to small number of samples). Memory use of app was not critical (in one case it was about 9 GB total, in others below 4 GB). The "Binary Images" section only lists Apple libs, apart from my app's. So, there seems to be no 3rd party ext involved. I've attached a full report as well. Full report of Crash 1