Anybody got lucky with reproducing this issue? We're experiencing this issue on ~5% of users, majority using iOS 15. App crashes on startup, but we're not sure if on cold start or getting back from background. Looks like this might be some navigation issue. [UIViewController _setViewAppearState:isAnimating:] + 832 adds to it... Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Triggered by Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x183701cac __exceptionPreprocess + 216 (NSException.m:200) 1 libobjc.A.dylib 0x19a770758 objc_exception_throw + 56 (objc-exception.mm:565) 2 CoreFoundation 0x1837d16d0 -[NSObject(NSObject) doesNotRecognizeSelector:] + 140 (NSObject.m:147) 3 UIKitCore 0x18687e610 -[UIResponder doesNotRecognizeSelector:] + 268 (UIResponder.m:659) 4 CoreFoundation 0x18369bedc ___forwarding___ + 1440 (NSForwarding.m:3577) 5 CoreFoundation 0x18369b14c _CF_forwarding_prep_0 + 92 6 UIKitCore 0x185da2654 -[UIUndoGestureInteraction didMoveToView:] + 112 (UIUndoGestureInteraction.m:195) 7 UIKitCore 0x185b5968c _setInteractionView + 84 (UIView.m:17714) 8 UIKitCore 0x185cb4ed8 -[UIView(Dragging) addInteraction:] + 484 (UIView.m:17743) 9 UIKitCore 0x185e4ebc4 -[UIEditingOverlayViewController _addInteractions] + 248 (UIEditingOverlayViewController.m:85) 10 UIKitCore 0x185b70c4c -[UIViewController _setViewAppearState:isAnimating:] + 832 (UIViewController.m:5362) 11 UIKitCore 0x18630fc8c __52-[UIViewController _setViewAppearState:isAnimating:]_block_invoke_2 + 192 (UIViewController.m:5422) 12 UIKitCore 0x185c8caa8 __52-[UIViewController _setViewAppearState:isAnimating:]_block_invoke + 196 (UIViewController.m:5426) 13 CoreFoundation 0x18367ccf8 __NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__ + 16 (NSArrayHelpers.m:10) 14 CoreFoundation 0x1836aac60 -[__NSArrayI enumerateObjectsWithOptions:usingBlock:] + 152 (NSArrayI.m:109) 15 UIKitCore 0x185b70dfc -[UIViewController _setViewAppearState:isAnimating:] + 1264 (UIViewController.m:5403) 16 UIKitCore 0x185c58570 -[UIViewController __viewDidAppear:] + 168 (UIViewController.m:5570) 17 UIKitCore 0x185c42afc __64-[UIViewController viewDidMoveToWindow:shouldAppearOrDisappear:]_block_invoke + 44 (UIViewController.m:5981) 18 UIKitCore 0x185df61b4 -[UIViewController _executeAfterAppearanceBlock] + 88 (UIViewController.m:5756) 19 UIKitCore 0x185ce5ef0 -[_UIAfterCACommitBlock run] + 64 (_UIAfterCACommitQueue.m:137) 20 UIKitCore 0x185bff5bc -[_UIAfterCACommitQueue flush] + 200 (_UIAfterCACommitQueue.m:228) 21 UIKitCore 0x185b2c318 _runAfterCACommitDeferredBlocks + 640 (UIApplication.m:2988) 22 UIKitCore 0x185b2c9d8 _cleanUpAfterCAFlushAndRunDeferredBlocks + 128 (UIApplication.m:2952) 23 UIKitCore 0x185b2cba4 _afterCACommitHandler + 56 (UIApplication.m:3003) 24 CoreFoundation 0x1836adf34 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32 (CFRunLoop.c:1804) 25 CoreFoundation 0x18367f578 __CFRunLoopDoObservers + 588 (CFRunLoop.c:1917) 26 CoreFoundation 0x18367ab0c __CFRunLoopRun + 1012 (CFRunLoop.c:2979) 27 CoreFoundation 0x18368dd8c CFRunLoopRunSpecific + 572 (CFRunLoop.c:3268) 28 GraphicsServices 0x19d79a9a0 GSEventRunModal + 160 (GSEvent.c:2200) 29 UIKitCore 0x185ec3018 -[UIApplication _run] + 1080 (UIApplication.m:3457) 30 UIKitCore 0x185c5729c UIApplicationMain + 2060 (UIApplication.m:5013) 31 MyAppName 0x10019c5f4 0x100194000 + 34292 32 dyld 0x10122c190 start + 444 (dyldMain.cpp:876)