Crash on ios when open new screen or navigate back to it

[DmitryNikiforovCoherent]

Description

It seems, there were similar issues previously
#23139,
but now issue appeared after upgrade to maui to 8.0.70 and removing .UseMauiCompatibility()
Sometimes view try to created with NativeHandle argument in constructor

This crash can appeared with Microsoft.Maui.Platform.ContentView|LayoutView and some custom views(so, adding constructor with ObjCRuntime.NativeHandle resolve issue for custom views, but no any options to resolve crashes with ContentView, LayoutView)

Steps to Reproduce

Sometimes just randomly appeared when navigate to new screen or navigate back to existing

Link to public reproduction project repository

No response

Version with bug

8.0.70 SR7

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

8.0.40 SR5

Affected platforms

iOS

Affected platform versions

No response

Did you find any workaround?

For custom views we can just add constructor with ObjCRuntime.NativeHandle handle, but no any ways to fix ios ContentView/LayoutView

Relevant log output

Unhandled managed exception: Failed to marshal the Objective-C object 0x14177b170 (type: Microsoft_Maui_Platform_ContentView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'Microsoft.Maui.Platform.ContentView' does not have a constructor that takes one NativeHandle argument). (ObjCRuntime.RuntimeException)
   at ObjCRuntime.Runtime.MissingCtor(IntPtr , IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.ConstructNSObject[UIView](IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle , Boolean )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr )
   at UIKit.UIView.get_Superview()
   at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Closed similar issues:

• 'Microsoft.Maui.Platform.LayoutView' does not have a constructor that takes one NativeHandle argument (#22150), similarity score: 0.80
• 'Microsoft.Maui.Platform.ContentView' does not have a constructor that takes one NativeHandle argument (#23139), similarity score: 0.80
• Random crashes on iOS when navigating (#18153), similarity score: 0.76
• [regression/8.0.3] [IOS] .NET 8.0 - Objective-C exception thrown. Name: CALayerInvalidGeometry (#19120), similarity score: 0.76
• App crash with PlatformView cannot be null here (#17871), similarity score: 0.76

Note: You can give me feedback by thumbs upping or thumbs downing this comment.

[DmitryNikiforovCoherent]

@jfversluis Could you help, what can be the reason of creating ios view with additional parameter in ctor? As I see from logs, sometimes this happens just during simple navigatio

[jfversluis]

Without a reproduction project of sorts its very hard to say something useful about it unfortunately

[DmitryNikiforovCoherent]

As I investigate, one of case(but not only): this happened, when we have CachedImage from FFImageLoading library on the ContentPage

1. Screen started, start load data
2. User tap on button, that hide part of page content, including CachedImage(custom implementation of tab behavior)
3. Data loaded, ImageSource set for hidden CachedImage, and CachedImageHandler.ImageLoadingSizeChanged called
4. Maui tries to redraw all parent and for some reason try to recreate LayoutView

ObjCRuntime.RuntimeException: Failed to marshal the Objective-C object 0x11ef7ad40 (type: Microsoft_Maui_Platform_LayoutView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'Microsoft.Maui.Platform.LayoutView' does not have a constructor that takes one NativeHandle argument).
   at ObjCRuntime.Runtime.MissingCtor(IntPtr , IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.ConstructNSObject[UIView](IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle , Boolean )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle )
   at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr )
   at UIKit.UIView.get_Superview()
   at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()
   at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()
   at Microsoft.Maui.Handlers.ViewHandler.MapInvalidateMeasure(IViewHandler handler, IView view, Object args)
   at Microsoft.Maui.CommandMapper`2.<>c__DisplayClass6_0[[Microsoft.Maui.IView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.IViewHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v, Object o)
   at Microsoft.Maui.CommandMapper.InvokeCore(String key, IElementHandler viewHandler, IElement virtualView, Object args)
   at Microsoft.Maui.Handlers.ElementHandler.Invoke(String command, Object args)
   at Microsoft.Maui.Controls.VisualElement.InvalidateMeasureOverride()
   at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IView.InvalidateMeasure()
   at Microsoft.Maui.Controls.VisualElement.InvalidateMeasureInternal(InvalidationTrigger trigger)
   at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.Controls.IVisualElementController.InvalidateMeasure(InvalidationTrigger trigger)
   at FFImageLoading.Maui.Platform.CachedImageHandler.<>c__DisplayClass15_0.<ImageLoadingSizeChanged>b__0()
   at Microsoft.Maui.Dispatching.DispatcherExtensions.<>c__DisplayClass1_0.<DispatchAsync>b__0()
   at Microsoft.Maui.Dispatching.DispatcherExtensions.<>c__DisplayClass0_0`1[[System.Boolean, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<DispatchAsync>b__0()
--- End of stack trace from previous location ---
   at FFImageLoading.Maui.Platform.CachedImageHandler.ImageLoadingSizeChanged(CachedImage element, Boolean isLoading)
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)

[DmitryNikiforovCoherent]

So, it seems, that when in MauiView.SetNeedsLayout try to get Superview, crash appeared if Superview is not visible

[DmitryNikiforovCoherent]

In this project reproduced not very often, need try to open several times and switch between tabs.
cc @jfversluis
MauiApp1.zip

[reid-kirkpatrick]

@DmitryNikiforovCoherent @jfversluis @Redth we are also seeing this with FFImageLoading as we convert our app. It's one of the last major issues we're having. Any ideas?

[jfversluis]

I see the repro also uses FFImageLoading. If we take FFImageLoading out of the equation, does it work then?

Just to establish if this is something in MAUI or FFImageLoading?

[DmitryNikiforovCoherent]

I'm not sure, according to the analytics, sometimes we also faced with this issue with next logs
Unhandled managed exception: Failed to marshal the Objective-C object 0x14177b170 (type: Microsoft_Maui_Platform_ContentView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'Microsoft.Maui.Platform.ContentView' does not have a constructor that takes one NativeHandle argument). (ObjCRuntime.RuntimeException) at ObjCRuntime.Runtime.MissingCtor(IntPtr , IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle ) at ObjCRuntime.Runtime.ConstructNSObject[UIView](IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle ) at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle , Boolean ) at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle ) at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr ) at UIKit.UIView.get_Superview() at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()

Without FFImageLoading.Maui.Platform.CachedImageHandler.ImageLoadingSizeChanged in stacktrace. But with FFImageLoading it's the simplest way to reproduce, because it has standard behavior to change control size after page loaded. As I mentioned above, it seems, sometimes, if control hidden, and child try to change size, get_Superview throw an exception
Will try to reproduce this with simple control like Label tomorrow

[DmitryNikiforovCoherent]

@DmitryNikiforovCoherent @jfversluis @Redth we are also seeing this with FFImageLoading as we convert our app. It's one of the last major issues we're having. Any ideas?

If you need to fix fast, just downgrade maui to 8.0.40. For me this helps

[mackayn]

@jfversluis @PureWeen @samhouts Seeing this in production in our iOS app making it incredibly unstable for users, as mentioned above, this happens constantly in regular navigation and no FFImageLoading library in our app. This is a critical issue for us.

MAUI 8.0.80
iOS 16.5 to 17.6

SIGABRT: Failed to marshal the Objective-C object 0x153507310 (type: Microsoft_Maui_Platform_LayoutView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'Microsoft.Maui.Platform.LayoutView' does not have a constructor that takes one NativeHandle argument).

ObjCRuntime.Runtime.MissingCtor(IntPtr , IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
ObjCRuntime.Runtime.ConstructNSObject[UIView](IntPtr , Type , MissingCtorResolution , IntPtr , RuntimeMethodHandle )
ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr , IntPtr , RuntimeMethodHandle , Boolean )
UIKit.UIView.get_Superview()
Microsoft.Maui.Platform.LayoutView.WillRemoveSubview(UIView uiview)
ObjCRuntime.Runtime.RethrowManagedException(IntPtr )
UIKit.UIView.AddSubview(UIView )
Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view)
Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.ILayout, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.LayoutView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context)
Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view)
Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.ILayout, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.LayoutView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context)
Microsoft.Maui.Handlers.ContentViewHandler.UpdateContent(IContentViewHandler handler)
Microsoft.Maui.Handlers.ContentViewHandler.MapContent(IContentViewHandler handler, IContentView page)
Microsoft.Maui.PropertyMapper`2.<>c__DisplayClass5_0[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IContentViewHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v)
Microsoft.Maui.PropertyMapper.UpdatePropertyCore(String key, IElementHandler viewHandler, IElement virtualView)
Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView)
Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view)
Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IView view)
Microsoft.Maui.Handlers.ContentViewHandler.SetVirtualView(IView view)
Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context)
Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.CreateViewControllerForPage(Page page)
Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.OnPushAsync(Page page, Boolean animated)
Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.<ViewDidLoad>b__53_0(Page p)
System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)
Foundation.NSAsyncSynchronizationContextDispatcher.Apply()
ObjCRuntime.Runtime.ThrowException(IntPtr )
UIKit.UIApplication.UIApplicationMain(Int32 , String[] , IntPtr , IntPtr )
UIKit.UIApplication.Main(String[] , Type , Type )
X.Mobile.Primary.Program.Main(String[] args)

[mackayn]

@DmitryNikiforovCoherent @jfversluis @Redth we are also seeing this with FFImageLoading as we convert our app. It's one of the last major issues we're having. Any ideas?

If you need to fix fast, just downgrade maui to 8.0.40. For me this helps

Wish we could, production software relies on higher dependencies such as Prism which relies on 8.0.60. There has to be a stable version on .NET8 MAUI before we entertain .NET9, this is costing companies money now.

[PureWeen]

Is there anyone that's hitting this issue that's using Shell?

I have a theory, but it's something that'll only manifest if you're not using shell

[mackayn]

Is there anyone that's hitting this issue that's using Shell?

I have a theory, but it's something that'll only manifest if you're not using shell

100% not using shell.

[DmitryNikiforovCoherent]

Is there anyone that's hitting this issue that's using Shell?

I have a theory, but it's something that'll only manifest if you're not using shell

The same, we are not using shell

[PureWeen]

SR9 should be out next week
If we were to try and roll a new SR8 it would probably end up being released about the same time as SR9 once it was tested/validated

Speaking of, if anyone can test the nugets from #24477 that would be helpful

[mackayn]

SR9 should be out next week If we were to try and roll a new SR8 it would probably end up being released about the same time as SR9 once it was tested/validated

Speaking of, if anyone can test the nugets from #24477 that would be helpful

If you could provide a link I can test, we're having to go with 8.0.81-ci.net8.24413.37 at present as we can't wait any longer and it's more stable than 8.0.80, if you provide a link I can test before we put out a very hot fix.

[DmitryNikiforovCoherent]

SR9 should be out next week If we were to try and roll a new SR8 it would probably end up being released about the same time as SR9 once it was tested/validated
Speaking of, if anyone can test the nugets from #24477 that would be helpful

If you could provide a link I can test, we're having to go with 8.0.81-ci.net8.24413.37 at present as we can't wait any longer and it's more stable than 8.0.80, if you provide a link I can test before we put out a very hot fix.

You can check current 8.0.81-ci from link https://dev.azure.com/xamarin/public/_build/results?buildId=121542&view=results (As @PureWeen provided above)

1. Download nuget-macos folder, add to project folder
2. Update Directory.Build.props with path to this folder $(MSBuildThisFileDirectory)/{folder}/nuget-macos
3. Update version for maui packages to 8.0.81-ci.net8.24413.37
   For me smoke test was successful, but to be sure will wait for stable release(for now have downgraded to version 8.0.40, works well)

[mackayn]

SR9 should be out next week If we were to try and roll a new SR8 it would probably end up being released about the same time as SR9 once it was tested/validated
Speaking of, if anyone can test the nugets from #24477 that would be helpful

If you could provide a link I can test, we're having to go with 8.0.81-ci.net8.24413.37 at present as we can't wait any longer and it's more stable than 8.0.80, if you provide a link I can test before we put out a very hot fix.

You can check current 8.0.81-ci from link https://dev.azure.com/xamarin/public/_build/results?buildId=121542&view=results (As @PureWeen provided above)

1. Download nuget-macos folder, add to project folder
2. Update Directory.Build.props with path to this folder $(MSBuildThisFileDirectory)/{folder}/nuget-macos
3. Update version for maui packages to 8.0.81-ci.net8.24413.37
   For me smoke test was successful, but to be sure will wait for stable release(for now have downgraded to version 8.0.40, works well)

Thanks, I am already using those libs with no issue, I was asking if I could get the nugets for #24477 which is a different issue (although related)

[PureWeen]

The latest nightlies should have the new version of the fix from #24477

https://github.com/dotnet/maui/wiki/Nightly-Builds

Let me know if that works

If not, I have an idea about how to add that code back in.

But if I don't have to :-) that'd be nice

Going to reopen this issue until I get some validation from y'all so we don't miss it

[pboisso]

Still crashing here with build 82.

[mackayn]

@PureWeen We couldn't wait so have a beta build release already out in testflight using 8.0.81-ci.net8.24413.37 with no navigation issues in release mode, client is testing atm. Once we have that out I'll re-test with the nightly builds

[PureWeen]

Still crashing here with build 82.

yea, we rolled the change back for 82 because of a regression it caused

There's a different fix now on our main branch that you can test with nightlies
We'll release this in the next couple of weeks officially

[PureWeen]

@PureWeen We couldn't wait so have a beta build release already out in testflight using 8.0.81-ci.net8.24413.37 with no navigation issues in release mode, client is testing atm. Once we have that out I'll re-test with the nightly builds

Here's what regressed

#24434

Not sure if this will apply to any of your scenarios but might help you know what to focus your testing on.

[mackayn]

@PureWeen

Just FYI, our iOS app went out into store release with 8.0.81-ci.net8.24413.37, not seeing this crash at all anymore so the fix is good, didn't appear in beta testing either. This app has over 100 pages and a lot of navigation interaction per session.

[PureWeen]

@reid-kirkpatrick @DmitryNikiforovCoherent @pboisso @sumowesley @thisisthekap @mackayn

If you have a chance to test the latest nightly can you see if it works there as well?

https://github.com/dotnet/maui/wiki/Nightly-Builds

Want to make sure this gets fixed for you all in SR9

[reid-kirkpatrick]

@PureWeen as far as I can tell after updating this is still working well. Thank you!

[sumowesley]

Hi @PureWeen,

I've tried 8.0.82 native, and I had a crash in three navigations. I then installed 8.0.90-ci.net8.24454.1 from the nightly build.

This crashed after a few iterations (5,3,6) as I switched between two screens. i then went back to the version using 8.0.40. While this has leak warnings from the navigation manager (not present in on the nightly build), I got to 16 page swaps before stopping.

Here is the first crash log:

Exception has occurred: ObjCRuntime.RuntimeException

- Failed to marshal the Objective-C object 0x139c39f60 (type: Microsoft_Maui_Platform_ContentView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'Microsoft.Maui.Platform.ContentView' does not have a constructor that takes one NativeHandle argument).

at ObjCRuntime.Runtime.MissingCtor(IntPtr ptr, IntPtr klass, Type type, MissingCtorResolution resolution, IntPtr sel, RuntimeMethodHandle method_handle) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:1412 at ObjCRuntime.Runtime.ConstructNSObject[UIView](IntPtr ptr, Type type, MissingCtorResolution missingCtorResolution, IntPtr sel, RuntimeMethodHandle method_handle) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:1543 at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr ptr, IntPtr sel, RuntimeMethodHandle method_handle, Boolean evenInFinalizerQueue) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:1898 at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr ptr, IntPtr sel, RuntimeMethodHandle method_handle) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:1860 at ObjCRuntime.Runtime.GetNSObject[UIView](IntPtr ptr) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:1855 at UIKit.UIView.get_Superview() in /Users/builder/azdo/_work/1/s/xamarin-macios/src/build/dotnet/ios/generated-sources/UIKit/UIView.g.cs:4881 at at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()  at at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()  at at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()  at at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()  at at Microsoft.Maui.Platform.MauiView.SetNeedsLayout()  at at Microsoft.Maui.Platform.ViewExtensions.InvalidateMeasure(UIView platformView, IView view)  at at Microsoft.Maui.Handlers.ViewHandler.MapInvalidateMeasure(IViewHandler handler, IView view, Object args)  at at Microsoft.Maui.CommandMapper`2.<>c__DisplayClass6_0[[Microsoft.Maui.IView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.IViewHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v, Object o)  at at Microsoft.Maui.CommandMapper.InvokeCore(String key, IElementHandler viewHandler, IElement virtualView, Object args)  at at Microsoft.Maui.CommandMapper.Invoke(IElementHandler viewHandler, IElement virtualView, String property, Object args)  at at Microsoft.Maui.Handlers.ElementHandler.Invoke(String command, Object args)  at at Microsoft.Maui.Controls.VisualElement.InvalidateMeasureOverride()  at at Microsoft.Maui.Controls.Layout.InvalidateMeasureOverride()  at at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IView.InvalidateMeasure()  at at Microsoft.Maui.Controls.Layout.Microsoft.Maui.Controls.IPaddingElement.OnPaddingPropertyChanged(Thickness oldValue, Thickness newValue)  at at Microsoft.Maui.Controls.PaddingElement.OnPaddingPropertyChanged(BindableObject bindable, Object oldValue, Object newValue)  at at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent)  at at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity)  at at Microsoft.Maui.Controls.BindingExpression.ApplyCore(Object sourceObject, BindableObject target, BindableProperty property, Boolean fromTarget, SetterSpecificity specificity)  at at Microsoft.Maui.Controls.BindingExpression.Apply(Boolean fromTarget)  at at Microsoft.Maui.Controls.BindingExpression.BindingExpressionPart.<PropertyChanged>b__50_0()  at at Microsoft.Maui.Controls.DispatcherExtensions.DispatchIfRequired(IDispatcher dispatcher, Action action)  at at Microsoft.Maui.Controls.BindingExpression.BindingExpressionPart.PropertyChanged(Object sender, PropertyChangedEventArgs args)  at at Microsoft.Maui.Controls.BindingExpression.WeakPropertyChangedProxy.OnPropertyChanged(Object sender, PropertyChangedEventArgs e)  at at Microsoft.Maui.Controls.BindableObject.OnPropertyChanged(String propertyName)  at at The49.Maui.Insets.Insets.OnPropertyChanged(String propertyName)  at at The49.Maui.Insets.Insets.SetEnabled(Boolean enabled)  at at The49.Maui.Insets.Insets.UpdateEdgeToEdge(Page page)  at at The49.Maui.Insets.Insets.SetupPage(Page page)  at at The49.Maui.Insets.Insets.PagePropertyChanged(Object sender, PropertyChangedEventArgs e)  at at Microsoft.Maui.Controls.BindableObject.OnPropertyChanged(String propertyName)  at at Microsoft.Maui.Controls.Element.OnPropertyChanged(String propertyName)  at at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent)  at at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity)  at at Microsoft.Maui.Controls.BindableObject.SetValue(BindablePropertyKey propertyKey, Object value)  at at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.Controls.IWindowController.set_Window(Window value)  at at Microsoft.Maui.Controls.Internals.PropertyPropagationExtensions.PropagateWindow(Element target, Element source)  at at Microsoft.Maui.Controls.Internals.PropertyPropagationExtensions.SetWindowFromParent(Element child)  at at Microsoft.Maui.Controls.Internals.PropertyPropagationExtensions.PropagatePropertyChanged(String propertyName, Element element, IEnumerable children)  at at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.Controls.IPropertyPropagationController.PropagatePropertyChanged(String propertyName)  at at Microsoft.Maui.Controls.Element.OnParentSet()  at at Microsoft.Maui.Controls.NavigableElement.OnParentSet()  at at Microsoft.Maui.Controls.Page.OnParentSet()  at at Microsoft.Maui.Controls.Element.SetParent(Element value)  at at Microsoft.Maui.Controls.Element.OnChildAdded(Element child)  at at Microsoft.Maui.Controls.ShellSection.OnChildAdded(Element child)  at at Microsoft.Maui.Controls.Element.AddLogicalChild(Element element)  at at Microsoft.Maui.Controls.ShellSection.AddPage(Page page)  at at Microsoft.Maui.Controls.ShellSection.OnPushAsync(Page page, Boolean animated)  at at Microsoft.Maui.Controls.ShellSection.PushStackOfPages(List`1 pages, Nullable`1 animate)  at at Microsoft.Maui.Controls.ShellSection.PrepareCurrentStackForBeingReplaced(ShellNavigationRequest request, ShellRouteParameters queryData, IServiceProvider services, Nullable`1 animate, List`1 globalRoutes, Boolean isRelativePopping)  at at Microsoft.Maui.Controls.ShellSection.GoToAsync(ShellNavigationRequest request, ShellRouteParameters queryData, IServiceProvider services, Nullable`1 animate, Boolean isRelativePopping)  at at Microsoft.Maui.Controls.ShellNavigationManager.GoToAsync(ShellNavigationParameters shellNavigationParameters, ShellNavigationRequest navigationRequest)  at at Nalu.ShellProxy.CommitNavigationAsync(Action completeAction)  at at Nalu.NavigationService.ExecuteRelativeNavigationAsync(INavigationInfo navigation, HashSet`1 disposeBag, IShellSectionProxy section, List`1 stack, Boolean sendAppearingToTarget, Boolean ignoreGuards, Func`1 onCheckingGuardAsync)  at at Nalu.NavigationService.<>c__DisplayClass14_0.<<GoToAsync>b__0>d.MoveNext()  at at Nalu.NavigationService.<>c__DisplayClass14_0.<<GoToAsync>b__0>d.MoveNext()  at at Nalu.NavigationService.ExecuteNavigationAsync(Func`1 navigationFunc)  at at Nalu.NavigationService.GoToAsync(INavigationInfo navigation)  at CaseyApp.ViewModels.OverviewPageViewModel.ShowCasesSearch() in /Users/Shared/develop/CaseyApp/CaseyApp/ViewModels/OverviewPageViewModel.cs:68 at at CommunityToolkit.Mvvm.Input.AsyncRelayCommand.AwaitAndThrowIfFailed(Task executionTask)  at at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)  at Foundation.NSAsyncSynchronizationContextDispatcher.Apply() in /Users/builder/azdo/_work/1/s/xamarin-macios/src/Foundation/NSAction.cs:179 at ObjCRuntime.Runtime.ThrowException(IntPtr gchandle) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:2708 at UIKit.UIApplication.UIApplicationMain(Int32 argc, String[] argv, IntPtr principalClassName, IntPtr delegateClassName) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:64 at UIKit.UIApplication.Main(String[] args, Type principalClass, Type delegateClass) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:96 at CaseyApp.Program.Main(String[] args) in /Users/Shared/develop/CaseyApp/CaseyApp/Platforms/iOS/Program.cs:13

[mackayn]

@PureWeen

Tried the nightly, I couldn't repo the navigation issue, had other issues such as setting the Date picker's binding to null kills the app where as 8.0.81-ci.net8.24413.37 it was fine but this is a nightly build so I'm aware it's WIP.

[PureWeen]

@mackayn

Do you have a repro for this one?

Tried the nightly, I couldn't repo the navigation issue, had other issues such as setting the Date picker's binding to null kills the app where as 8.0.81-ci.net8.24413.37 it was fine but this is a nightly build so I'm aware it's WIP.

Or can you paste the error trace here?

[mackayn]

@mackayn

Do you have a repro for this one?

Tried the nightly, I couldn't repo the navigation issue, had other issues such as setting the Date picker's binding to null kills the app where as 8.0.81-ci.net8.24413.37 it was fine but this is a nightly build so I'm aware it's WIP.

Or can you paste the error trace here?

Sorry, I'm away on vacation for a few weeks and don't have access to dev hardware, hence why I went with 8.0.81-ci.net8.24413.37 to get a working solution out to the client before my vacation time.

[PureWeen]

@PureWeen

Tried the nightly, I couldn't repo the navigation issue, had other issues such as setting the Date picker's binding to null kills the app where as 8.0.81-ci.net8.24413.37 it was fine but this is a nightly build so I'm aware it's WIP.

is this on Windows?

[reid-kirkpatrick]

@PureWeen I am seeing instances of this when running the 9 RC. Did this make not make it in? Any updated timeframe on SR9?

[pboisso]

FYI @PureWeen, still crashing here with latest 8.0.90 SR9.