Subject: Call Directory Extension Enable Failure for Individual User Dear Apple Developer Support, We are experiencing an issue with our Call Directory Extension where one specific user cannot enable it, while thousands of other users on the same iOS version can enable it successfully. Issue Details: App: 美信 (Midea Connect) Problem: Extension fails to enable with error: "请求'美信'的数据时失败" (Failed to request data from app) Affected: 1 user out of thousands iOS Version: 26.0.1 What Works: All other users can enable the extension normally Same iOS version, no issues App Group and Extension identifier are correctly configured User Has Tried: Reinstall app - No effect Toggle extension off/on - Still fails Restart device - No improvement

10:17:34.335397+0900 Process SpringBoard Bootstrapping failed for <FBApplicationProcess: 0x4d8eca700; app<com.a.b.c>:> with error: <NSError: 0x300a3d1d0; domain: RBSRequestErrorDomain; code: 5; "Launch failed."> { NSUnderlyingError = <NSError: 0x300a54090; domain: NSPOSIXErrorDomain; code: 85> { NSLocalizedDescription = Launchd job spawn failed; }; }