Hello, I've reported a similar issue here FB9857467, where there wasn't termination reason, but it could be related to the NotificatonCenter. Exception Type: EXC_CRASH (SIGKILL) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Triggered by Thread: 0 Kernel Triage: VM - Compressor failed a blocking pager_get VM - Compressor failed a blocking pager_get Thread 0 name: Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001b8707ae4 __semwait_signal + 8 1 libsystem_c.dylib 0x000000018bf19f00 nanosleep + 216 (nanosleep.c:104) 2 Foundation 0x0000000182875a18 +[NSThread sleepForTimeInterval:] + 156 (NSThread.m:504) 3 CoreFoundation 0x0000000181002f88 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 28 (CFNotificationCenter.c:652) 4 CoreFoundation 0x000000018109ec3c ___CFXRegistrationPost_block_invoke + 52 (CFNotificationCenter.c:173) 5 CoreFoundation 0x0000000181071ff4 _CFXRegistrationPost + 456 (CFNotificationCenter.c:199) 6 CoreFoundation 0x0000000181018df4 _CFXNotificationPost + 716 (CFNotificationCenter.c:1147) 7 Foundation 0x0000000182815f68 -[NSNotificationCenter postNotificationName:object:userInfo:] + 96 (NSNotification.m:560) 8 UIKitCore 0x00000001843d3654 -[UIApplication _terminateWithStatus:] + 300 (UIApplication.m:6919) 9 UIKitCore 0x0000000183abbb38 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 128 (_UISceneLifecycleMultiplexer.m:808) 10 UIKitCore 0x0000000183cb0a80 -[_UISceneLifecycleMultiplexer forceExitWithTransitionContext:scene:] + 224 (_UISceneLifecycleMultiplexer.m:482) 11 UIKitCore 0x00000001843d029c -[UIApplication workspaceShouldExit:withTransitionContext:] + 212 (UIApplication.m:3828) 12 FrontBoardServices 0x0000000192cef780 __63-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:]_block_invoke_2 + 80 (FBSWorkspaceScenesClient.m:331) 13 FrontBoardServices 0x0000000192caa06c -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 240 (FBSWorkspace.m:352) 14 FrontBoardServices 0x0000000192cef718 __63-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:]_block_invoke + 132 (FBSWorkspaceScenesClient.m:328)

I'm experiencing the same issue with a third party library. That library is working perfectly with Xcode 13.

Thanks for your reply @eskimo, No, we don't use a lot of C++ in our product. Do you have any recommendations in this case? I will try to add more logs in our code for the next release, but the crash rate is increasing and unfortunately, I don't know where to start looking. Regards

Thanks for your replay @eskimo, Unfortunately, we are not in touch with one of these users to ask them for sysdiagnose log, but I will try. I wanted to check something with you... As part of this version, we are also getting Peak Memory and Memory at Suspension metrics: I was checking debugging gauges and as soon as I put the app on background the memory consumption increases abruptly: So, using instruments for allocations I found most of the memory is used by CoreUI and the stack trace looks pretty similar to the crash log (but in this case doesn't crash): I wonder if the app could be running out of memory and the system kills it as soon as the user opens it. Also, this is happening mostly on iOS 16.5 devices per our metrics: Regards!