Scale of ManipulationDelta never changes when using SKSwapChainPanel on IOS

[VRage]

Current behavior

There is a weird behaviour when using SKSwapChainPanel on IOS every ManipulationDelta of the Scale is 1. If SKXamlCanvas is used everything works just fine on every platform. Here is a codesample based on the SkiaSharpTest sample of uno:

SKSwapChainPanelIOS.zip

Even though the event is not registered directly on SKSwapChainPanel the e.Delta.Scale is 1, which is not the case for SKXamlCanvas.

public MainPage()
        {
#if !WINDOWS
            SKSwapChainPanel.RaiseOnUnsupported = false;
#endif

            this.ManipulationDelta += MainPage_ManipulationDelta;

            this.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.TranslateY | ManipulationModes.Scale;

            this.InitializeComponent();

#if HAS_UNO_SKIA || WINDOWS
            notSupported.Visibility = Visibility.Visible;
#endif
        }

        public float Zoom { get; set; } = 1;

        private void MainPage_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
        {
            Zoom *= e.Delta.Scale;

            if(e.Delta.Scale != 1)
            {
                if (hwAcceleration.IsChecked ?? false)
                {
    #if !WINDOWS
                    swapChain.Invalidate();
    #endif
                }
                else
                {
                    canvas.Invalidate();
                }
            }
        }

Every other supported platform works just fine.

SKSwapchainPanelFail.mp4

Expected behavior

No response

How to reproduce it (as minimally and precisely as possible)

No response

Workaround

No response

Works on UWP/WinUI

None

Environment

No response

NuGet package version(s)

No response

Affected platforms

iOS

IDE

Visual Studio 2022

IDE version

No response

Relevant plugins

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Anything else we need to know?

No response