After updating to iOS 15, many of our customers are experiencing the hanging issue at [CLLocationManager locationServicesEnabled]. #0 (null) in objc_msgSend () #1 (null) in resolveInstanceMethod(objc_object*, objc_selector*, objc_class*) () #2 (null) in resolveMethod_locked(objc_object*, objc_selector*, objc_class*, int) () #3 (null) in class_getInstanceMethod () #4 (null) in setProtocolMetdataWithMethods () #5 (null) in setProtocolMetadata () #6 (null) in -[NSXPCInterface setProtocol:] () #7 (null) in +[NSXPCInterface interfaceWithProtocol:] () #8 (null) in -[CLLocationInternalClient connection] () #9 (null) in -[CLLocationInternalClient synchronousRemoteObject] () #10 (null) in -[CLLocationInternalClient getLocationServicesEnabled:] () #11 (null) in CLClientIsLocationServicesEnabled () #12 (null) in +[CLLocationManager locationServicesEnabled] () #13 0x0000000100a014cc in -[SWLocationManager startUpdatingLocation:] at /Users/chuh/git/isharing/ios/iSharing/SWLocationManager.m:669 #14 0x0000000100a0140c in -[SWLocationManager startBackgroundLocationManager:] at /Users/chuh/git/isharing/ios/iSharing/SWLocationManager.m:652 #15 0x000000010094bf98 in -[AppDelegate application:didFinishLaunchingWithOptions:] at /Users/chuh/git/isharing/ios/iSharing/AppDelegate.m:224 #16 (null) in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] () #17 (null) in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] () #18 (null) in -[UIApplication _runWithMainScene:transitionContext:completion:] () #19 (null) in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] () #20 (null) in _UIScenePerformActionsWithLifecycleActionMask () #21 (null) in __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke () #22 (null) in -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] () #23 (null) in -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] () #24 (null) in -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] () #25 (null) in __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block... () #26 (null) in +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:] () #27 (null) in _UISceneSettingsDiffActionPerformChangesWithTransitionContext () #28 (null) in -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] () #29 (null) in __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.571 () #30 (null) in -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] () #31 (null) in -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] () #32 (null) in -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] () #33 (null) in -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] () #34 (null) in -[FBSScene _callOutQueue_agent_didCreateWithTransitionContext:completion:] () #35 (null) in __94-[FBSWorkspaceScenesClient createWithSceneID:groupID:parameters:transitionContext:completion:]_block_invoke.180 () #36 (null) in -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] () #37 (null) in __94-[FBSWorkspaceScenesClient createWithSceneID:groupID:parameters:transitionContext:completion:]_block_invoke () #38 (null) in _dispatch_client_callout () #39 (null) in _dispatch_block_invoke_direct$VARIANT$mp () #40 (null) in __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ () #41 (null) in -[FBSSerialQueue _targetQueue_performNextIfPossible] () #42 (null) in -[FBSSerialQueue _performNextFromRunLoopSource] () #43 (null) in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ () #44 (null) in __CFRunLoopDoSource0 () #45 (null) in __CFRunLoopDoSources0 () #46 (null) in __CFRunLoopRun () #47 (null) in CFRunLoopRunSpecific () #48 (null) in GSEventRunModal () #49 (null) in -[UIApplication _run] () #50 (null) in UIApplicationMain () #51 0x000000010094b24c in main at /Users/chuh/git/isharing/ios/iSharing/main.m:15 #52 (null) in start ()