Thank you for your answer. The first problem has been solved , since the update of Xcode to 16.3 version: I can now emulate the Watch and the iPhone at the same time. for the rest , my own Watch (serie 10) has wifi stabilty problems (since the last watchOS update): it loose the connexion : sessionReachabilityDidChange change of value very fast : for example when I type this message, I had 9 change of value . It is the same on 2 different Wifi router at 1.5 or 2 meters from the Watch. This make the relation between Xcode and this Watch very pain full with a lot of message of connexion Lost, debugger not working, Watch not initilized and others. The ticket number is FB17176331

This problem was resolved by the intervention of an Apple engineer in another thread where I pointed out the bug report for Xcode 16.2, which almost pointed me to the correct culprit in the bug: ApplicationDelegate, in my Swift code. While Xcode 16.3 displays this ARM assembly code in a completely different report than 16.2. Do you see ApplicationDelegate in this assembly code? I don't. What I'm pointing out is that Xcode 16.3 doesn't help developers in my case. And regarding the link you provided, which is very comprehensive, I wonder why it isn't in the Xcode help where it would be very useful.

You gave me a direction to search : SceneDelegate. In "WillConnect to" , There was a line : UIApplication.shared.delegate = self i removed this line, rebuild with no error, what was this line doing here ? I do not remember.. And test this version. Put it in back ground , wait , force-kill ... "sceneDidDisconnect" is executed AND applicationWillTerminate in appDelegate too. And no more crash. Thank you.

If i put "exit(0) " in SceneDiddisconnect, the crash doesnot appear , The problem is in AppDelegate. But what problem ? I have put this code : this is not called. func applicationWillTerminate(_ application: UIApplication){ print("I will terminate") }

EDIT : I have found the cause , in fact this is not IOS the main cause, but BlueSky APP ! If I try to share a text and a link, it will accept the post , but not the link and only the text. I'm sure the link will be accepted if I post it as text. It's strange, I can share links and pictures to Bluesky in other part of IOS and in others apps.

I have the same with an iPad : zero symbols from my App. How can I analyse this ? Distributor ID: com.apple.TestFlight Hardware Model: iPad13,18 Process: maPollution [1680] Path: /private/var/containers/Bundle/Application/146B4588-48A1-48AD-8CC8-EDE01AE304F7/maPollution.app/maPollution Identifier: rva.maPollution Version: 2.0 (5) AppStoreTools: 16C7015 AppVariant: 1:iPad13,18:18 Beta: YES Code Type: ARM-64 (Native) Role: Background Parent Process: launchd [1] Coalition: rva.maPollution [1452] Date/Time: 2025-03-20 18:14:53.6644 +1100 Launch Time: 2025-03-20 18:12:45.4114 +1100 OS Version: iPhone OS 18.3.1 (22D72) Release Type: User Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x00005c8cb94929b0 -> 0x0000000cb94929b0 (possible pointer authentication failure) Exception Codes: 0x0000000000000001, 0x00005c8cb94929b0 VM Region Info: 0xcb94929b0 is not in any region. Bytes after previous region: 41226414513 Bytes before following region: 12997547600 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL MALLOC_NANO 300000000-320000000 [512.0M] rw-/rwx SM=COW ---> GAP OF 0xca0000000 BYTES commpage (reserved) fc0000000-1000000000 [ 1.0G] ---/--- SM=NUL reserved VM address space (unallocated) Termination Reason: SIGNAL 11 Segmentation fault: 11 Terminating Process: exc handler [1680] Triggered by Thread: 0 Thread 0 name: Thread 0 Crashed: 0 libobjc.A.dylib 0x000000018c843c20 objc_msgSend + 32 (:-1) 1 UIKitCore 0x0000000192c444c8 -[UIApplication _terminateWithStatus:] + 136 (UIApplication.m:7539) 2 UIKitCore 0x0000000191c9d644 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 112 (_UISceneLifecycleMultiplexer.m:819) 3 UIKitCore 0x00000001923eee8c -[_UISceneLifecycleMultiplexer forceExitWithTransitionContext:scene:] + 164 (_UISceneLifecycleMultiplexer.m:482) 4 UIKitCore 0x0000000192c3fc28 -[UIApplication workspaceShouldExit:withTransitionContext:] + 164 (UIApplication.m:4238) 5 FrontBoardServices 0x00000001a8e4bcd4 __63-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:]_block_invoke_2 + 72 (FBSWorkspaceScenesClient.m:632) 6 FrontBoardServices 0x00000001a8e144c8 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 168 (FBSWorkspace.m:445) 7 FrontBoardServices 0x00000001a8e4bc74 __63-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:]_block_invoke + 128 (FBSWorkspaceScenesClient.m:629) 8 libdispatch.dylib 0x0000000197086fa8 _dispatch_client_callout + 20 (object.m:576) 9 libdispatch.dylib 0x000000019708a9f0 _dispatch_block_invoke_direct + 284 (queue.c:515) 10 FrontBoardServices 0x00000001a8e0d378 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 52 (FBSSerialQueue.m:285) 11 FrontBoardServices 0x00000001a8e0d2f8 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] + 240 (FBSSerialQueue.m:309) 12 FrontBoardServices 0x00000001a8e0d1d0 -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] + 28 (FBSSerialQueue.m:322) 13 CoreFoundation 0x000000018f33cf4c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1970) 14 CoreFoundation 0x000000018f33cee0 __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2014) 15 CoreFoundation 0x000000018f33fb40 __CFRunLoopDoSources0 + 244 (CFRunLoop.c:2051) 16 CoreFoundation 0x000000018f33ed3c __CFRunLoopRun + 840 (CFRunLoop.c:2969) 17 CoreFoundation 0x000000018f391284 CFRunLoopRunSpecific + 588 (CFRunLoop.c:3434) 18 GraphicsServices 0x00000001dc5cd4c0 GSEventRunModal + 164 (GSEvent.c:2196) 19 UIKitCore 0x0000000191ed6674 -[UIApplication _run] + 816 (UIApplication.m:3846) 20 UIKitCore 0x0000000191afce88 UIApplicationMain + 340 (UIApplication.m:5503) 21 UIKitCore 0x000000019223915c UIApplicationMain(_:_:_:_:) + 104 (UIKit.swift:565) 22 maPollution 0x00000001024e4240 specialized static UIApplicationDelegate.main() + 28 (/<compiler-generated>:20) 23 maPollution 0x00000001024e4240 static AppDelegate.$main() + 28 (AppDelegate.swift:0) 24 maPollution 0x00000001024e4240 main + 116 25 dyld 0x00000001b55d1de8 start + 2724 (dyldMain.cpp:1338)

[quote='828498022, DTS Engineer, /thread/776072?answerId=828498022#828498022'] NSSet *readTypes = [NSSet setWithObject:[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount]]; [healthKitStore requestAuthorizationToShareTypes:nil readTypes:readTypes completion:^(BOOL success, NSError * _Nullable error) { NSLog(@"%@", error); }]; [/quote] It's working. It ask for Steps and nothing else . I dont know what was bad , but tank you !

they are initialized : (NSSet *)dataTypesToRead { HKCharacteristicType *distanceWalkingRunning = [HKObjectType characteristicTypeForIdentifier:HKQuantityTypeIdentifierDistanceWalkingRunning] ; HKCharacteristicType *StepCount = [HKSampleType characteristicTypeForIdentifier:HKQuantityTypeIdentifierStepCount]; HKCharacteristicType *cycleCount = [HKSampleType characteristicTypeForIdentifier:HKQuantityTypeIdentifierDistanceCycling]; return [NSSet setWithObjects: distanceWalkingRunning, StepCount,cycleCount , nil]; }

My Init code is simple : if I Set like This I have a crash. - (void) init_healthkit { ALERTE_HEALTH = @"" ; self.healthStore = [[HKHealthStore alloc] init]; if ([HKHealthStore isHealthDataAvailable]) { NSLog(@"Healthkit available "); NSSet *writeDataTypes = [self dataTypesToWrite]; NSSet *readDataTypes = [self dataTypesToRead]; [self.healthStore requestAuthorizationToShareTypes:nil readTypes:readDataTypes completion:^(BOOL success, NSError *error) { if (!success) { NSLog(@"You didn't allow HealthKit to access these read data types. In your app, try to handle this error gracefully when a user decides not to provide access. The error was: %@. If you're using a simulator, try it on a device.", error); HEALTHKIT =@"N" ; return; } NSLog(@"Healthkit OK read/write "); dispatch_async(dispatch_get_main_queue(), ^{ // Update the user interface based on the current user's health information. NSLog(@"Healthkit OK"); HEALTHKIT = @"Y" ; }); }]; } }

Update to myself, I did find a solution. Modifying the configurationForConnectingSceneSession in Appdelegate.m . Testing if the Device is an IPAD then loading a different scene configuration . I added a "iPad" configuration in the .info , with the iPad Dashboard value, and this is now working.