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“LLDB crash”

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VisionKit - crash after photo taken in VNDocumentCameraViewController in iOS 26 when Liquid Glass enabled
I'm adopting Liquid Glass in iOS 26, when I try to test VNDocumentCameraViewController with document scanning after Liquid Glass enabled, there's a crash just after a photo is taken in VNDocumentCameraViewController, here's the screenshot when it crashed The exception output in XCode console is this: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Layout requested for visible navigation bar, > standardAppearance=0x12407b900 scrollEdgeAppearance=0x12407bb80 compactAppearance=0x12407b880 no-scroll-edge-support, when the top item belongs to a different navigation bar. topItem = style=navigator leftBarButtonItems=0x123d4e5f0 rightBarButtonItems=0x123d4d5a0, navigation bar = > delegate=0x10a805200 standardAppearance=0x107b2c300 scrollEdgeAppearance=0x107b2c280 compactAppearance=0x107b2c100, possibly from a client attempt to nest wrapped navigation controllers.' *** First throw call stack: (0x18e1db994 0x18b0f5814 0x18c092aa0 0x193b18660 0x193a7d54
1
0
491
Dec ’25
Reply to Keyframe animation crashes with +[_SwiftUILayerDelegate _screen]: unrecognized selector sent to class on iOS 26
We're experiencing a similar UpdateCycle crash on iOS 26, though with a slightly different manifestation. Our crash occurs when displaying custom inputView keyboards on iPad devices. Crash Details: Exception: NSInternalInconsistencyException Message: Invalid parameter not satisfying: parentEnvironment != nil Location: UC::DriverCore::continueProcessing() at address 5472 in UpdateCycle library OS Version: iPadOS 26.1.0 (84.6% of crashes), also seen on 26.0.0 and 26.0.1 Device: 100% iPad devices (iPad Pro models, all in landscape orientation) Reproduction Context: The crash occurs when a custom UIView is set as textField.inputView and the text field becomes first responder on iPad. The crash happens during UpdateCycle's processing when it attempts to access the focus environment hierarchy. The custom keyboard view appears to be accessed by UpdateCycle before it's fully integrated into the focus hierarchy, resulting in a nil parentEnvironment. Key Observation
Topic: UI Frameworks SubTopic: UIKit Tags:
Dec ’25
Xcode Playgrounds crashes upon microphone access
Sorry if this is a dumb question. I’m still a beginner. I created an Xcode Playground app with Microphone and Speech Recognition capabilities enabled, along with a backup Info.plist. However, when running the app on Mac Catalyst, a real device, or the iOS and iPadOS simulators, it crashes right after the Speech Recognition permission popup and again after the Microphone permission popup. For extra context, the app initially worked fine in the Swift Playgrounds app, but that environment uses an outdated SDK, so it no longer supports some of the features I’ve implemented. I’m also struggling to find clear, beginner-friendly documentation that explains how AVAudioEngine works, which is making it hard to understand what’s going wrong and how to debug it.
0
0
228
Dec ’25
_MPRemoteCommandEventDispatch crashes on iOS 26.x devices.
I'm seeing crashes in _MPRemoteCommandEventDispatch on iOS 26.x devices in 3 apps. According to Bugsnag logs they are: NSInternalInconsistencyException: event dispatch <_MPRemoteCommandEventDispatch: sourceID=(null) ([HostedRoutingSessionDataSource] handleControlSendingCommand<2W5E>)> state:201> deallocated without calling continuation I attached a log from Xcode organizer matching Bugsnag crash. mpr_remote_command_event.crash When I set the brakpoint on the -[_MPRemoteCommandEventDispatch dealloc] I can see it it's hit every time I tap play or pause on locked screen play button. Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000002370420cc __pthread_kill + 8 (:-1) 1 libsystem_pthread.dylib 0x00000001e975c810 pthread_kill + 268 (pthread.c:1721) 2 libsystem_c.dylib 0x0000000198f8ff64 abort + 124 (abort.c:122) 3 libc++abi.dylib 0x000000018a7cf808 __abort_message + 132 (abort_message.cpp:66) 4 libc++abi.dylib 0x000000018a7be484 demangling_terminate_handler() + 304 (cxa_
4
0
935
Dec ’25
[iOS 26.2] Crash due to WKScriptMessageHandler delegate
The crash is specific to iOS 26.2 prior versions working fine. WKScriptMessageHandler delegate func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) Name attribute is accessible but WKScriptMessage body attribute causes crash The object seems to be not accessible(not in memory) self.webkit.configuration.userContentController.add(self, name: sampleHandler) self.webkit.load(request) func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { print(message.name) // works print(message.body) // crashes }
5
0
1.6k
Dec ’25
Reply to Background Local cache update
First of all, App Review handles rules on a case by case basis, and usually will refrain from commenting on apps unless they are under review. So, for a final answer, you will need to submit your app. That said, these are my educated opinions. Although this is an off label use for a Notification Service Extension which is meant to be used for modifying content in newly delivered notifications, there are no strict rules for what you can do within the limits of an extension process. The process is short lived (30 seconds), memory restrained (24 MB), and bound by a number of sandbox rules that limit the abuse it can inflict on a user's device. The OS itself will enforce the rules, up to and including deciding to not launch the extension if it historically has been terminated for constantly crashing and/or being terminated due to not properly handling the constraints. Also keep in mind that these notifications have to be visible, and cannot be silent notifications. If you wanted to use silent notificatio
Dec ’25
Reply to WatchOS Companion app on VPP Crashing on Launch
Following up here. This is of course infernally annoying to test and debug: there is no response from Apple on this issue or documentation about VPP vs App Store differences. Furthermore we can only test our attempted changes by submitting a new build to the app store, waiting for approval, and then trying to deploy to our devices with VPP. What we can confirm is: – This is happening with other watch companion apps installed through VPP. HOWEVER a couple of watch companion apps I tested DID work. I would be happy to provide a list for comparison to Apple if it's helpful. – We tried adjusting a bunch of project settings related to optimization, dead code stripping, symbol stripping, etc. following a mix of online and AI-based guidance about potential objective-c metadata issues flagged from the crash logs. Our app is primarily based on Swift 5 but it does target some objective-c pods and frameworks which haven't changed in years. This didn't help. – Our app used the old WatchKit architecture with both
Topic: Code Signing SubTopic: General Tags:
Dec ’25
Reply to Guidance on implementing Declared Age Range API in response to Texas SB2420
Related to termination, my advice is to NEVER terminate your app. In the past, some of our Apps had a Decline button on the Terms of Service (ToS) screen that terminated the app, but App Review flagged that behavior as a Crash and blocked our app submission. Now our ToS screens only have an Accept button and the user can press that or they can close the app themselves; this always gets through App Review. For Age Verification, we have implemented similar: If an eligible user Declines to share their Age Range or is a minor without parental consent, they see a screen explaining that they are blocked with a link to App Store documents about the law and settings. There is no way out of that screen other than closing the app.
Dec ’25
Xcode Crashes when viewing XCUITest Result
I've been working on UI Tests for a month or two and things have been great. But I believe there was a recent update to Xcode [running Version 26.2 (17C52)] and since then about 80% of the time when I try to view the test results so I can see the screenshots and video, Xcode crashes hard and I have to open it again. I've tried cleaning the Build folder and Derived Data and all sorts of stuff like that. Restarted Xcode, restarted my computer, etc. Any idea of how I can avoid these crashes?
3
0
208
Dec ’25
Reply to [iOS 26.2] Crash due to WKScriptMessageHandler delegate
This happens only in iOS 26.2 prior versions working fine . I’m listening for updates from sampleHandler triggered from web view. The object reference is released when the didReceive message is triggered self.webkit.configuration.userContentController.add(self, name: sampleHandler) self.webkit.load(request) func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { print(message.name) // works print(message.body) // crashes }
Topic: Safari & Web SubTopic: General Tags:
Dec ’25
Reply to CallKit does not activate audio session with higher probability after upgrading to iOS 18.4.1
Apologies for the delayed update. Yesterday, we completed the rollout of your workaround solution, and our metrics indicate its effectiveness. The issue count has decreased significantly during the implementation, dropping from 6000 per day to 1000 per day as of today. Fabulous, that's great to hear and thank you for sharing concrete numbers. I was fairly confident it would work, but it's good to get independent confirmation. We would like to express our gratitude for the workaround solution you provided. You're very welcome. Currently, we have implemented the workaround only for incoming calls, as these were the primary source of issues observed in our app. We plan to extend the implementation to outbound calls as well. I don't know this for certain, but my guess is that the difference between the incoming/outgoing rate is mostly due to usage patterns and the details of your existing implementation. In particular, these two factors: I suspect most calls originate from the foreground (the user opening your ap
Topic: App & System Services SubTopic: General Tags:
Dec ’25
VisionKit - crash after photo taken in VNDocumentCameraViewController in iOS 26 when Liquid Glass enabled
I'm adopting Liquid Glass in iOS 26, when I try to test VNDocumentCameraViewController with document scanning after Liquid Glass enabled, there's a crash just after a photo is taken in VNDocumentCameraViewController, here's the screenshot when it crashed The exception output in XCode console is this: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Layout requested for visible navigation bar, > standardAppearance=0x12407b900 scrollEdgeAppearance=0x12407bb80 compactAppearance=0x12407b880 no-scroll-edge-support, when the top item belongs to a different navigation bar. topItem = style=navigator leftBarButtonItems=0x123d4e5f0 rightBarButtonItems=0x123d4d5a0, navigation bar = > delegate=0x10a805200 standardAppearance=0x107b2c300 scrollEdgeAppearance=0x107b2c280 compactAppearance=0x107b2c100, possibly from a client attempt to nest wrapped navigation controllers.' *** First throw call stack: (0x18e1db994 0x18b0f5814 0x18c092aa0 0x193b18660 0x193a7d54
Replies
1
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0
Views
491
Activity
Dec ’25
Reply to Keyframe animation crashes with +[_SwiftUILayerDelegate _screen]: unrecognized selector sent to class on iOS 26
We're experiencing a similar UpdateCycle crash on iOS 26, though with a slightly different manifestation. Our crash occurs when displaying custom inputView keyboards on iPad devices. Crash Details: Exception: NSInternalInconsistencyException Message: Invalid parameter not satisfying: parentEnvironment != nil Location: UC::DriverCore::continueProcessing() at address 5472 in UpdateCycle library OS Version: iPadOS 26.1.0 (84.6% of crashes), also seen on 26.0.0 and 26.0.1 Device: 100% iPad devices (iPad Pro models, all in landscape orientation) Reproduction Context: The crash occurs when a custom UIView is set as textField.inputView and the text field becomes first responder on iPad. The crash happens during UpdateCycle's processing when it attempts to access the focus environment hierarchy. The custom keyboard view appears to be accessed by UpdateCycle before it's fully integrated into the focus hierarchy, resulting in a nil parentEnvironment. Key Observation
Topic: UI Frameworks SubTopic: UIKit Tags:
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Dec ’25
Reply to Crash in URLConnectionLoader::loadWithWhatToDo
As i am facing also same crash into Xcode 26.1.1 (production build) and Testing on Xcode 26.2. and when i set usesClassicLoadingMode = false. its stopped preparing form request encoding. as i can see there is no data into httpbody. @DTS Engineer
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Dec ’25
Xcode Playgrounds crashes upon microphone access
Sorry if this is a dumb question. I’m still a beginner. I created an Xcode Playground app with Microphone and Speech Recognition capabilities enabled, along with a backup Info.plist. However, when running the app on Mac Catalyst, a real device, or the iOS and iPadOS simulators, it crashes right after the Speech Recognition permission popup and again after the Microphone permission popup. For extra context, the app initially worked fine in the Swift Playgrounds app, but that environment uses an outdated SDK, so it no longer supports some of the features I’ve implemented. I’m also struggling to find clear, beginner-friendly documentation that explains how AVAudioEngine works, which is making it hard to understand what’s going wrong and how to debug it.
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0
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0
Views
228
Activity
Dec ’25
_MPRemoteCommandEventDispatch crashes on iOS 26.x devices.
I'm seeing crashes in _MPRemoteCommandEventDispatch on iOS 26.x devices in 3 apps. According to Bugsnag logs they are: NSInternalInconsistencyException: event dispatch <_MPRemoteCommandEventDispatch: sourceID=(null) ([HostedRoutingSessionDataSource] handleControlSendingCommand<2W5E>)> state:201> deallocated without calling continuation I attached a log from Xcode organizer matching Bugsnag crash. mpr_remote_command_event.crash When I set the brakpoint on the -[_MPRemoteCommandEventDispatch dealloc] I can see it it's hit every time I tap play or pause on locked screen play button. Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000002370420cc __pthread_kill + 8 (:-1) 1 libsystem_pthread.dylib 0x00000001e975c810 pthread_kill + 268 (pthread.c:1721) 2 libsystem_c.dylib 0x0000000198f8ff64 abort + 124 (abort.c:122) 3 libc++abi.dylib 0x000000018a7cf808 __abort_message + 132 (abort_message.cpp:66) 4 libc++abi.dylib 0x000000018a7be484 demangling_terminate_handler() + 304 (cxa_
Replies
4
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0
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935
Activity
Dec ’25
[iOS 26.2] Crash due to WKScriptMessageHandler delegate
The crash is specific to iOS 26.2 prior versions working fine. WKScriptMessageHandler delegate func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) Name attribute is accessible but WKScriptMessage body attribute causes crash The object seems to be not accessible(not in memory) self.webkit.configuration.userContentController.add(self, name: sampleHandler) self.webkit.load(request) func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { print(message.name) // works print(message.body) // crashes }
Replies
5
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0
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1.6k
Activity
Dec ’25
Motiv Audio app crashes while opening Motiv Video app
Install both Motiv Audio and Motiv Video apps from the App Store. Open and use the Motiv Audio app. Remove audio app from background. Open Motiv Video app. Observe that the Motiv Audio app crashes. Both apps are checking Free available space. Both app are using Audio Engine
Replies
1
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0
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69
Activity
Dec ’25
Reply to Background Local cache update
First of all, App Review handles rules on a case by case basis, and usually will refrain from commenting on apps unless they are under review. So, for a final answer, you will need to submit your app. That said, these are my educated opinions. Although this is an off label use for a Notification Service Extension which is meant to be used for modifying content in newly delivered notifications, there are no strict rules for what you can do within the limits of an extension process. The process is short lived (30 seconds), memory restrained (24 MB), and bound by a number of sandbox rules that limit the abuse it can inflict on a user's device. The OS itself will enforce the rules, up to and including deciding to not launch the extension if it historically has been terminated for constantly crashing and/or being terminated due to not properly handling the constraints. Also keep in mind that these notifications have to be visible, and cannot be silent notifications. If you wanted to use silent notificatio
Replies
Boosts
Views
Activity
Dec ’25
Reply to WatchOS Companion app on VPP Crashing on Launch
Following up here. This is of course infernally annoying to test and debug: there is no response from Apple on this issue or documentation about VPP vs App Store differences. Furthermore we can only test our attempted changes by submitting a new build to the app store, waiting for approval, and then trying to deploy to our devices with VPP. What we can confirm is: – This is happening with other watch companion apps installed through VPP. HOWEVER a couple of watch companion apps I tested DID work. I would be happy to provide a list for comparison to Apple if it's helpful. – We tried adjusting a bunch of project settings related to optimization, dead code stripping, symbol stripping, etc. following a mix of online and AI-based guidance about potential objective-c metadata issues flagged from the crash logs. Our app is primarily based on Swift 5 but it does target some objective-c pods and frameworks which haven't changed in years. This didn't help. – Our app used the old WatchKit architecture with both
Topic: Code Signing SubTopic: General Tags:
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Activity
Dec ’25
Reply to AgeRange Functionality working on iPhone how to debug on Mac?
Ok, I tested it now but the small app I added to my Feedback is still crashing. Currently on another area, but it is even no longer starting. I updated my Feedback with the requested information
Topic: App & System Services SubTopic: General Tags:
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Dec ’25
Reply to Guidance on implementing Declared Age Range API in response to Texas SB2420
Related to termination, my advice is to NEVER terminate your app. In the past, some of our Apps had a Decline button on the Terms of Service (ToS) screen that terminated the app, but App Review flagged that behavior as a Crash and blocked our app submission. Now our ToS screens only have an Accept button and the user can press that or they can close the app themselves; this always gets through App Review. For Age Verification, we have implemented similar: If an eligible user Declines to share their Age Range or is a minor without parental consent, they see a screen explaining that they are blocked with a link to App Store documents about the law and settings. There is no way out of that screen other than closing the app.
Replies
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Views
Activity
Dec ’25
Xcode Crashes when viewing XCUITest Result
I've been working on UI Tests for a month or two and things have been great. But I believe there was a recent update to Xcode [running Version 26.2 (17C52)] and since then about 80% of the time when I try to view the test results so I can see the screenshots and video, Xcode crashes hard and I have to open it again. I've tried cleaning the Build folder and Derived Data and all sorts of stuff like that. Restarted Xcode, restarted my computer, etc. Any idea of how I can avoid these crashes?
Replies
3
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0
Views
208
Activity
Dec ’25
Reply to [iOS 26.2] Crash due to WKScriptMessageHandler delegate
Same piece of code works in iOS 26.1 and earlier even a simple print crashes due to object no longer being available
Topic: Safari & Web SubTopic: General Tags:
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Activity
Dec ’25
Reply to [iOS 26.2] Crash due to WKScriptMessageHandler delegate
This happens only in iOS 26.2 prior versions working fine . I’m listening for updates from sampleHandler triggered from web view. The object reference is released when the didReceive message is triggered self.webkit.configuration.userContentController.add(self, name: sampleHandler) self.webkit.load(request) func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { print(message.name) // works print(message.body) // crashes }
Topic: Safari & Web SubTopic: General Tags:
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Views
Activity
Dec ’25
Reply to CallKit does not activate audio session with higher probability after upgrading to iOS 18.4.1
Apologies for the delayed update. Yesterday, we completed the rollout of your workaround solution, and our metrics indicate its effectiveness. The issue count has decreased significantly during the implementation, dropping from 6000 per day to 1000 per day as of today. Fabulous, that's great to hear and thank you for sharing concrete numbers. I was fairly confident it would work, but it's good to get independent confirmation. We would like to express our gratitude for the workaround solution you provided. You're very welcome. Currently, we have implemented the workaround only for incoming calls, as these were the primary source of issues observed in our app. We plan to extend the implementation to outbound calls as well. I don't know this for certain, but my guess is that the difference between the incoming/outgoing rate is mostly due to usage patterns and the details of your existing implementation. In particular, these two factors: I suspect most calls originate from the foreground (the user opening your ap
Topic: App & System Services SubTopic: General Tags:
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Dec ’25