Interface Not Registered

[RealCaseofgames]

I am trying to use D3D11 in Silk.NET, and I am following the sample given in this GitHub repository. However, I reach this line of code:
SilkMarshal.ThrowHResult(factory.CreateSwapChainForHwnd(
device,
_renderWindow.WindowSurface.Native!.DXHandle!.Value,
in scd,
null,
ref Unsafe.NullRef<IDXGIOutput>(),
ref swapchain));

When I reach it, the API throws a System.ArgumentException that reads "Interface not registered." I cannot figure out why. Is there something I am missing?

My Swap Chain is defined as:
private ComPtr<IDXGISwapChain1> swapchain = default;

I also define my Factory as:
ComPtr<IDXGIFactory2> factory = dxgi.CreateDXGIFactory<IDXGIFactory2>();

My Swap Chain Description is:
SwapChainDesc1 scd = new();
scd.SampleDesc = new SampleDesc(1, 0);
scd.BufferUsage = DXGI.UsageRenderTargetOutput;
scd.BufferCount = 2;
scd.SwapEffect = SwapEffect.Discard;
scd.Flags = (uint)SwapChainFlag.AllowModeSwitch;

I have also abstracted the window handle into its own class.

I am unsure if this is the right place to ask this question, but I don't really know where else to put it.