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We found some iOS8 users upgrade the app version through the automatic update feature provided by Apple, app will launch immediate crashed, and the crash stack is strange as below shows, it always crashed when access 0x00000000f98d79c8, sometimes it crashed at _GLOBAL__sub_I_main.mm (main.mm:0).Does the automatic update function have the bug on iOS8?What's the problem lead the app crashed, if reinstall the app, it will launch success.It seems only iOS 8.x system has the problemIncident Identifier: 53BFE9D3-6F08-4186-8A87-E967FDE43264 CrashReporter Key: d84b036805f6b8eae44a076c75104f5ce56ece8c Hardware Model: iPad4,4 Process: xxxx [21508] Path: /private/var/mobile/Containers/Bundle/Application/05133EDA-20A8-46CB-B464-748E2414AC42/xxxx.app/xxxx Identifier: com.company.xxxx Code Type: ARM-64 (Native) Parent Process: launchd [1] Date/Time: 2019-05-18 23:25:01.613 +0800 Launch Time: 2019-05-18 23:25:01.383 +0800 OS Version: iOS 8.4.1 (12H321) Report Version: 105 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x00000000f98d79c8 Triggered by Thread: 0 Thread 0 name: Thread 0 Crashed: 0 ??? 0x00000000f98d79c8 0 + 4186798536 1 dyld 0x00000001200213f0 ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 36 (ImageLoaderMachO.cpp:1811) 2 dyld 0x000000012001d68c ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 332 (ImageLoader.cpp:1017) 3 dyld 0x000000012001d4dc ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 140 (ImageLoader.cpp:489) 4 dyld 0x000000012001d7a4 ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) + 84 (ImageLoader.cpp:504) 5 dyld 0x0000000120012154 dyld::initializeMainExecutable() + 200 (dyld.cpp:1122) 6 dyld 0x00000001200158c0 dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) + 2668 (dyld.cpp:4864) 7 dyld 0x0000000120011044 _dyld_start + 68 (dyldStartup.s:301) Thread 0 crashed with ARM Thread State (64-bit): x0: 0x0000000000000001 x1: 0x000000016fdfbb80 x2: 0x000000016fdfbb90 x3: 0x000000016fdfbc20 x4: 0x00000001200391e0 x5: 0x000000000000006c x6: 0x0000000000000000 x7: 0x00000000000008e0 x8: 0x0000000000000000 x9: 0x0000000100004000 x10: 0x0000000100004510 x11: 0x000000000000e700 x12: 0x0000000000000020 x13: 0x0000000135e18000 x14: 0x0000000000003fff x15: 0x0000000000003fff x16: 0x0000000194ce1698 x17: 0x000046eeda4ba36b x18: 0x0000000000000000 x19: 0x000000012003def8 x20: 0x0000000120039118 x21: 0x00000001200391e0 x22: 0x0000000120034b13 x23: 0x0000000100019ddc x24: 0x0000000000000139 x25: 0x0000000000000000 x26: 0x00000001021e8d78 x27: 0x0000000100004be8 x28: 0x00000001000045f8 fp: 0x000000016fdf7f60 lr: 0x0000000120021238 sp: 0x000000016fdf7ef0 pc: 0x00000000f98d79c8 cpsr: 0x20000000 Binary Images: 0x100004000 - 0x1021e3fff xxxx arm64 /var/mobile/Containers/Bundle/Application/05133EDA-20A8-46CB-B464-748E2414AC42/xxxx.app/xxxxExpected: App launch success after auto upgrade app on iOS8.The crash problem is serious for us, and I download from AppStore using iOS8 devices, and it can launch success.