We've got the same crash and it is hard to replicated. It happened on ios 12.4.0 device with low memory available.Any update here?Crash: Fatal Exception: NSInvalidArgumentException -[_UISnapshotWindow actualSceneBounds]: unrecognized selector sent to instance 0x135e99f80 Stack Trace:Fatal Exception: NSInvalidArgumentException 0 CoreFoundation 0x1f7d7a98c __exceptionPreprocess 1 libobjc.A.dylib 0x1f6f539f8 objc_exception_throw 2 CoreFoundation 0x1f7c971c8 -[NSOrderedSet initWithSet:copyItems:] 3 UIKitCore 0x2247fd220 -[UIResponder doesNotRecognizeSelector:] 4 CoreFoundation 0x1f7d801d4 ___forwarding___ 5 CoreFoundation 0x1f7d81e6c _CF_forwarding_prep_0 6 UIKitCore 0x2245dde88 -[UIInputWindowController _aligningInsetsForChildInputViewController:includeSceneBounds:] 7 UIKitCore 0x2245e01c4 -[UIInputWindowController updateViewConstraints] 8 UIKitCore 0x2245e2c2c -[UIInputWindowController updateForKeyplaneChangeWithContext:] 9 UIKitCore 0x2246730f0 -[_UIRemoteKeyboards performOnControllers:] 10 UIKitCore 0x2245db7e0 -[UIInputSetHostView _didChangeKeyplaneWithContext:] 11 UIKitCore 0x2244f4100 -[_UIKBCompatInputView _didChangeKeyplaneWithContext:] 12 UIKitCore 0x2245f2254 -[UIKeyboard _didChangeKeyplaneWithContext:] 13 UIKitCore 0x22460eb24 -[UIKeyboardImpl didMoveToSuperview] 14 UIKitCore 0x224c540a0 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke 15 Foundation 0x1f86f59f4 -[NSISEngine withBehaviors:performModifications:] 16 UIKitCore 0x224c53ca8 -[UIView(Hierarchy) _postMovedFromSuperview:] 17 UIKitCore 0x224c630f8 -[UIView(Internal) _addSubview:positioned:relativeTo:] 18 UIKitCore 0x2245efe08 -[UIKeyboard activate] 19 UIKitCore 0x224666990 -[UIKeyboardAutomatic activate] 20 UIKitCore 0x2245ef1dc -[UIKeyboard setFrame:] 21 UIKitCore 0x2245f2234 -[UIKeyboard _didChangeKeyplaneWithContext:] 22 UIKitCore 0x224666508 -[UIKeyboardAutomatic willResume:] 23 CoreFoundation 0x1f7ceba28 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ 24 CoreFoundation 0x1f7ceb9f4 ___CFXRegistrationPost_block_invoke 25 CoreFoundation 0x1f7ceaee8 _CFXRegistrationPost 26 CoreFoundation 0x1f7ceab94 ___CFXNotificationPost_block_invoke 27 CoreFoundation 0x1f7c64474 -[_CFXNotificationRegistrar find:object:observer:enumerator:] 28 CoreFoundation 0x1f7cea644 _CFXNotificationPost 29 Foundation 0x1f86d36f4 -[NSNotificationCenter postNotificationName:object:userInfo:] 30 UIKitCore 0x2247e8f80 -[UIApplication _sendWillEnterForegroundCallbacks] 31 UIKitCore 0x224093be4 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] 32 UIKitCore 0x224091b64 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke 33 UIKitCore 0x22409182c -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] 34 UIKitCore 0x22409636c __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke 35 UIKitCore 0x224097150 _performActionsWithDelayForTransitionContext 36 UIKitCore 0x224096224 -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] 37 UIKitCore 0x22409af24 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] 38 UIKitCore 0x2243cb2b0 -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] 39 FrontBoardServices 0x1fa6f75d8 __80-[FBSSceneImpl updater:didUpdateSettings:withDiff:transitionContext:completion:]_block_invoke_3 40 libdispatch.dylib 0x1f77b97d4 _dispatch_client_callout 41 libdispatch.dylib 0x1f77911ec _dispatch_block_invoke_direct$VARIANT$armv81 42 FrontBoardServices 0x1fa731040 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ 43 FrontBoardServices 0x1fa730cdc -[FBSSerialQueue _performNext] 44 FrontBoardServices 0x1fa731294 -[FBSSerialQueue _performNextFromRunLoopSource] 45 CoreFoundation 0x1f7d0c728 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 46 CoreFoundation 0x1f7d0c6a8 __CFRunLoopDoSource0 47 CoreFoundation 0x1f7d0bf90 __CFRunLoopDoSources0 48 CoreFoundation 0x1f7d06ecc __CFRunLoopRun 49 CoreFoundation 0x1f7d067c0 CFRunLoopRunSpecific 50 GraphicsServices 0x1f9f0779c GSEventRunModal 51 UIKitCore 0x2247d1c38 UIApplicationMain 52 OjO 0x102afbf64 main + 21 (MappableObject.swift:21) 53 libdyld.dylib 0x1f77ca8e0 start