I can reproduce this issue. This issue happens on Windows, which may relate to [BUG] .net maui SkiaSharp crashe. The SkiaSharp.Extended.UI.Maui NuGet depends on SkiaSharp.Views.Maui.Controls NuGet, so it also crashes. Good news is the issue has been fixed in the latest version.

The workaround is to manually install the latest SkiaSharp.Views.Maui.Controls NuGet, and it works.

Here is the package I've installed

    <PackageReference Include="SkiaSharp.Extended.UI.Maui" Version="3.0.0-preview.7" />
    <PackageReference Include="SkiaSharp.Views.Maui.Controls" Version="3.0.0-preview.5.4" />

Here is the snippet of code

<skia:SKLottieView  WidthRequest="300" HeightRequest="300" Source="dotnetbot.json" RepeatCount="-1" />

Here is the result

Please let me know if you have any questions.