Hi All, Working on one browsing application for iOS. While browsing and closing tabs, application gets crash on few of client devices. In console log we can see following details: Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Fatal error occured Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 87053 named com.apple.ScreenTime.ScreenTimeWebExtension.viewservice was interrupted, but the message was sent over an additional proxy and therefore this proxy has become invalid." UserInfo= In crash file, following can be seen. Incident Identifier: 68DF3B97-3DD2-4E55-B350-B424CEF955F8 Hardware Model: iPhone11,6 Process: Browser [86470] Path: /private/var/containers/Bundle/Application/B1B7A7F8-3CEC-4952-97D1-D2A5C1203684/Browser.app/Browser Identifier: jp.co.rakuten.mobile.browser Version: 1.4.3.0 (1.0.0) AppStoreTools: 12E506 AppVariant: 1:iPhone11,6:14 Beta: YES Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd [1] Coalition: jp.co.rakuten.mobile.browser [642] Date/Time: 2021-09-23 20:38:41.1239 +0900 Launch Time: 2021-09-23 20:35:53.2268 +0900 OS Version: iPhone OS 14.7.1 (18G82) Release Type: User Baseband Version: 3.04.01 Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Triggered by Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x194bfe708 __exceptionPreprocess + 220 (NSException.m:199) 1 libobjc.A.dylib 0x1a97087a8 objc_exception_throw + 60 (objc-exception.mm:565) 2 CoreFoundation 0x194b003b8 +[NSException raise:format:arguments:] + 100 (NSException.m:146) 3 Foundation 0x195ed64c4 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 132 (NSException.m:231) 4 ScreenTime 0x1c960c544 __31-[STWebpageController loadView]_block_invoke + 612 (STWebpageController.m:104) 5 UIKitCore 0x196feb160 __146-[NSExtension(UIViewControllerAdditions) _instantiateViewControllerWithInputItems:asAccessory:traitCollection:listenerEndpoint:connectionHandler:]_block_invoke_3 + 284 (NSExtension_UIKitAdditions.m:94) 6 libdispatch.dylib 0x1947e9a84 _dispatch_call_block_and_release + 32 (init.c:1466) 7 libdispatch.dylib 0x1947eb81c _dispatch_client_callout + 20 (object.m:559) 8 libdispatch.dylib 0x1947f9c70 _dispatch_main_queue_callback_4CF + 884 (inline_internal.h:2557) 9 CoreFoundation 0x194b78340 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CFRunLoop.c:1790) 10 CoreFoundation 0x194b72218 __CFRunLoopRun + 2524 (CFRunLoop.c:3118) 11 CoreFoundation 0x194b71308 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3242) 12 GraphicsServices 0x1ac1f4734 GSEventRunModal + 164 (GSEvent.c:2259) 13 UIKitCore 0x1975ef75c -[UIApplication _run] + 1072 (UIApplication.m:3269) 14 UIKitCore 0x1975f4fcc UIApplicationMain + 168 (UIApplication.m:4740) 15 Browser 0x102eb4768 (anonymous namespace)::RunUIApplicationMain(int, char**) + 144 (chrome_exe_main.mm:65) 16 Browser 0x102eb4768 main + 744 (chrome_exe_main.mm:98) 17 libdyld.dylib 0x19482dcf8 start + 4 Thread 0 name: Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001c2de9334 __pthread_kill + 8 1 libsystem_pthread.dylib 0x00000001e086da9c pthread_kill + 272 (pthread.c:1582) 2 libsystem_c.dylib 0x000000019dfc5b84 abort + 124 (abort.c:118) 3 libc++abi.dylib 0x00000001a97e9bb8 abort_message + 132 (abort_message.cpp:78) 4 libc++abi.dylib 0x00000001a97daec8 demangling_terminate_handler() + 308 (cxa_default_handlers.cpp:67) 5 libobjc.A.dylib 0x00000001a96e705c _objc_terminate() + 144 (objc-exception.mm:701) 6 libc++abi.dylib 0x00000001a97e8fa0 std::__terminate(void (*)()) + 20 (cxa_handlers.cpp:59) 7 libc++abi.dylib 0x00000001a97e8f2c std::terminate() + 48 (cxa_handlers.cpp:88) 8 libdispatch.dylib 0x00000001947eb830 _dispatch_client_callout + 40 (object.m:562) 9 libdispatch.dylib 0x00000001947f9c70 _dispatch_main_queue_callback_4CF + 884 (inline_internal.h:2557) 10 CoreFoundation 0x0000000194b78340 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CFRunLoop.c:1790) 11 CoreFoundation 0x0000000194b72218 __CFRunLoopRun + 2524 (CFRunLoop.c:3118) 12 CoreFoundation 0x0000000194b71308 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3242) 13 GraphicsServices 0x00000001ac1f4734 GSEventRunModal + 164 (GSEvent.c:2259) 14 UIKitCore 0x00000001975ef75c -[UIApplication _run] + 1072 (UIApplication.m:3269) 15 UIKitCore 0x00000001975f4fcc UIApplicationMain + 168 (UIApplication.m:4740) 16 Browser 0x0000000102eb4768 (anonymous namespace)::RunUIApplicationMain(int, char**) + 144 (chrome_exe_main.mm:65) 17 Browser 0x0000000102eb4768 main + 744 (chrome_exe_main.mm:98) 18 libdyld.dylib 0x000000019482dcf8 start + 4 Since it is not happening in run time debugger attached mode, so not able to find actual reason behind this crash, any help would be appreciated.