+1 Seeing the exact same stacktrace in SwiftUI since our app launched. Our app is 100% SwiftUI. However, I've never been able to figure out why and when the crashes happens. This is currently our NO.1 source of crashes. Fatal Exception: NSInternalInconsistencyException Trying to layout popover in the delegate callback popoverPresentationController:willRepositionPopoverToRect:inView: will lead to recursion. Do not force the popover's container view or an ancestor to layout in this callback. Fatal Exception: NSInternalInconsistencyException 0 CoreFoundation 0x827cc __exceptionPreprocess 1 libobjc.A.dylib 0x172e4 objc_exception_throw 2 Foundation 0x80f8d8 _userInfoForFileAndLine 3 UIKitCore 0xa617e8 -[UIPopoverPresentationController _sendDelegateWillRepositionToRect] 4 UIKitCore 0xa61fd0 -[UIPopoverPresentationController containerViewWillLayoutSubviews] 5 UIKitCore 0xd414 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] 6 QuartzCore 0x78c28 CA::Layer::layout_if_needed(CA::Transaction*) 7 UIKitCore 0x50138 -[UIView(Hierarchy) layoutBelowIfNeeded] 8 SwiftUI 0xc799f4 specialized PopoverPresentationDelegate.updateAnchor(_:presentationController:) 9 SwiftUI 0xc72b08 closure #1 in UIKitInspectorV3Bridge.updateAnchor() 10 SwiftUICore 0x1f1308 partial apply for thunk for @escaping @callee_guaranteed () -> () 11 SwiftUICore 0x4a5d3c static Update.dispatchActions() 12 SwiftUICore 0x4a520c static Update.end() 13 SwiftUICore 0x4a5fd8 closure #1 in static Update.ensure<A>(_:) 14 SwiftUICore 0x4a4dd4 static Update.ensure<A>(_:) 15 SwiftUI 0xc75790 UIKitInspectorV3Bridge.popoverSource(for:) 16 SwiftUI 0xc7a84c specialized PopoverPresentationDelegate.popoverPresentationController(_:willRepositionPopoverTo:in:) 17 SwiftUI 0xc75af0 @objc PopoverPresentationDelegate.popoverPresentationController(_:willRepositionPopoverTo:in:) 18 UIKitCore 0xa6185c -[UIPopoverPresentationController _sendDelegateWillRepositionToRect] 19 UIKitCore 0xa61fd0 -[UIPopoverPresentationController containerViewWillLayoutSubviews] 20 UIKitCore 0xd414 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] 21 QuartzCore 0x78c28 CA::Layer::layout_if_needed(CA::Transaction*) 22 UIKitCore 0x50138 -[UIView(Hierarchy) layoutBelowIfNeeded] 23 UIKitCore 0x546cc -[UIWindowScene _enumerateWindowsIncludingInternalWindows:onlyVisibleWindows:asCopy:stopped:withBlock:] 24 UIKitCore 0x82b258 ___UIWindowHostingScenePerformUpdateWithEffectiveSettings_block_invoke_2 25 UIKitCore 0x38c0ac +[UIViewController _performWithoutDeferringTransitionsAllowingAnimation:actions:] 26 UIKitCore 0x82b160 ___UIWindowHostingScenePerformUpdateWithEffectiveSettings_block_invoke 27 UIKitCore 0x7ff30 +[UIView(Animation) performWithoutAnimation:] 28 UIKitCore 0x82a20c _UIWindowHostingScenePerformUpdateWithEffectiveSettings 29 UIKitCore 0x82a2c8 -[UIScene _enableOverrideSettingsForActions:] 30 UIKitCore 0x82a490 -[UIScene _performSystemSnapshotWithActions:] 31 UIKitCore 0x114428c -[UIApplication _performSnapshotsWithAction:forScene:completion:] 32 UIKitCore 0x1607954 __98-[_UISceneSnapshotBSActionsHandler _respondToActions:forFBSScene:inUIScene:fromTransitionContext:]_block_invoke_3 33 UIKitCore 0x16077d0 __98-[_UISceneSnapshotBSActionsHandler _respondToActions:forFBSScene:inUIScene:fromTransitionContext:]_block_invoke_2 34 UIKitCore 0x216190 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] 35 UIKitCore 0x2d5824 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] 36 UIKitCore 0x2d5404 -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] 37 FrontBoardServices 0x371bc __76-[FBSScene updater:didUpdateSettings:withDiff:transitionContext:completion:]_block_invoke.193 38 FrontBoardServices 0x36d6c -[FBSScene _callOutQueue_coalesceClientSettingsUpdates:] 39 FrontBoardServices 0x63c8 -[FBSScene updater:didUpdateSettings:withDiff:transitionContext:completion:] 40 FrontBoardServices 0x14db8 __94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke_2 41 FrontBoardServices 0x14c44 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] 42 FrontBoardServices 0x19114 __94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke 43 libdispatch.dylib 0x40d0 _dispatch_client_callout 44 libdispatch.dylib 0x7b14 _dispatch_block_invoke_direct 45 FrontBoardServices 0x16300 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ 46 FrontBoardServices 0x16280 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] 47 FrontBoardServices 0x16158 -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] 48 CoreFoundation 0x56328 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 49 CoreFoundation 0x562bc __CFRunLoopDoSource0 50 CoreFoundation 0x53dc0 __CFRunLoopDoSources0 51 CoreFoundation 0x52fbc __CFRunLoopRun 52 CoreFoundation 0x52830 CFRunLoopRunSpecific 53 GraphicsServices 0x11c4 GSEventRunModal 54 UIKitCore 0x3d2eb0 -[UIApplication _run] 55 UIKitCore 0x4815b4 UIApplicationMain 56 SwiftUI 0x101f98 closure #1 in KitRendererCommon(_:) 57 SwiftUI 0xe2664 runApp<A>(_:) 58 SwiftUI 0xe5490 static App.main() 59 Notewise 0x8839c4 main (NotewiseApp.swift) 60 ??? 0x1b1df6ec8 (Missing)

More info: Xcode 15.3 stable release + iOS 17.3 -> 100% CPU activity when idle Xcode 15.3 stable release + iOS 17.4 stable -> 100% CPU activity when idle Xcode 15.2 + iOS 17.4 stable -> normal