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According to this comment in the sample project on GitHub and this answer by Apple Staff, CKSyncEngine should be re-initialized after signing out or switching accounts so that CKSyncEngine schedules a new fetch on init. But according to my tests, CKSyncEngine will schedule a fetch after having a signed out and signed in again, without me ever having to reset the serialized sync state. The documentation doesn't mentioned anywhere that CKSyncEngine should be re-initialized after an account change. In fact, it states that CKSyncEngine will reset its state internally on account changes. So if that's the case, then I'm very confused as to why the official recommendation is to re-initialize CKSyncEngine after receiving .signOut or .accountSwitch. Can someone please clarify the correct approach here?

We are trying to upload the first Apple-hosted Managed Background Assets pack for our macOS app, but Transporter rejects the asset pack ID during upload. App details: App name: DistillApp Apple ID: 6760288806 Bundle ID: cn.rkbkosp.DistillApp Asset pack ID: distill.pipeline.zh-baseline Platform: macOS Transporter: 1.4 Xcode: 26.2 macOS: 26.3.1 What we see in Transporter: Apple ID: 6760288806 App Name: DistillApp App Bundle ID: cn.rkbkosp.DistillApp No background assets found. And when we try to upload the first asset pack, Transporter fails with: 获取 Apple ID “6760288806”的资源包列表失败。 (-19243) There is an error with a URL parameter (400) Found invalid values: distill.pipeline.zh-baseline What we have already confirmed locally: The app resolves correctly in Transporter, so the Apple ID and bundle ID appear to be correct. The app Info.plist includes: BAHasManagedAssetPacks = YES BAUsesAppleHosting = YES BAAppGroupID = 8U6DAJ62JT.group.cn.rkbkosp.DistillApp.assets The asset pack manifest uses: assetPackID = d

I’m building an iOS app that uses FamilyControls + ManagedSettings + DeviceActivity. Goal: temporarily “unlock” a shielded app for N minutes, then automatically re-apply the shield when the timer expires. What I do: In the main app, when user picks an expiry (e.g. 15 min, 30 min). I start a non-repeating DeviceActivity schedule and remove the app’s ApplicationToken from ManagedSettingsStore().shield.applications. I also store activeUnlockBundleID etc. in an App Group so the DeviceActivityMonitor extension can re-lock at the end. Expected: DeviceActivityMonitor.intervalDidEnd(for:) is invoked when the non-repeating interval ends, and I re-add the token to the shield set. Actual: The app does not re-lock when the interval expires. I added OS logs as well as “debug local notifications” from the DeviceActivityMonitor extension in: init() intervalDidStart intervalDidEnd eventDidReachThreshold None of these logs or notifications ever appear, which suggests the extension is never invoked (or cannot schedule local no

Area: CoreML / Machine Learning Describe the issue: On iOS 26.4, calling MLModel(contentsOf:configuration:) to load an .mlpackage model hangs indefinitely and eventually kills the app via watchdog. The same model loads and runs inference successfully in under 1 second on iOS 26.3.1. The hang occurs inside eort_eo_compiler_compile_from_ir_program (espresso) during on-device AOT recompilation triggered by MLE5ProgramLibraryOnDeviceAOTCompilationImpl createProgramLibraryHandleWithRespecialization:error:. A C++ exception (__cxa_throw) is thrown inside libBNNS.dylib during the exception unwind, which then hangs inside __cxxabiv1::dyn_cast_slow and __class_type_info::search_below_dst. Swift's try/catch does not catch this — the exception originates in C++ and the process hangs rather than terminating cleanly. Setting config.computeUnits = .cpuOnly does not resolve the issue. MLE5ProgramLibrary initialises as shared infrastructure regardless of compute units. Steps to reproduce: Create an app with an .mlpackage Core

After updating my Xcode to the latest, I am unable to download an installed app container from the Xcode Devices screen. This currently works with older versions of Xcode with the same app on the same iPad. This worked with older versions of Xcode on the same MacBook as well (including the Xcode 26 beta before updating to the official release yesterday) The specified file could not be transferred. Domain: com.apple.dt.CoreDeviceError Code: 7000 User Info: { DVTErrorCreationDateKey = 2025-09-18 20:31:01 +0000; NSURL = file:///Users/thomsk2/Desktop/com.test.polarisdev%202025-09-18%2015:30.53.744.xcappdata/AppData/Library/Caches/; } The specified file could not be transferred. Domain: com.apple.dt.CoreDeviceError Code: 7000 User Info: { NSURL = file:///Users/thomsk2/Desktop/com.test.polarisdev%202025-09-18%2015:30.53.744.xcappdata/AppData/Library/Caches/; } Failed to perform I/O operations. Domain: com.apple.dt.remoteservices.error Code: 11001 Failure Reason: Cannot o