projects missing from dotnet6 uno winui project

Question

I'm getting this response when trying to create a new project:

dotnet new unoapp-winui-net6 -o unoapp


The template "Multi-Platform App net6 (WinUI)" was created successfully.

Processing post-creation actions...
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.Shared\unoapp.Shared.shproj...
Restore succeeded.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.Mobile\unoapp.Mobile.csproj...
  Determining projects to restore...
  Restored C:\Users\a_bri\source\repos\unoapp\unoapp.Mobile\unoapp.Mobile.csproj (in 655 ms).
Restore succeeded.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.UWP\unoapp.Uwp.csproj...
Restore succeeded.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.Windows\unoapp.Windows.csproj...
  Determining projects to restore...
  Restored C:\Users\a_bri\source\repos\unoapp\unoapp.Windows\unoapp.Windows.csproj (in 63 ms).
Restore succeeded.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.Gtk.csproj...
MSBUILD : error MSB1009: Project file does not exist.
Switch: C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.Gtk.csproj
Restore failed.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.WPF.csproj...
MSBUILD : error MSB1009: Project file does not exist.
Switch: C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.WPF.csproj
Restore failed.
Running 'dotnet restore' on C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.WPF.Host.csproj...
MSBUILD : error MSB1009: Project file does not exist.
Switch: C:\Users\a_bri\source\repos\unoapp\unoapp.macOS\unoapp.Skia.WPF.Host.csproj
Restore failed.
Post action failed.
Manual instructions: Run 'dotnet restore'

Templates installed:

dotnet new -i Uno.ProjectTemplates.Dotnet                                                                    

The following template packages will be installed:
   Uno.ProjectTemplates.Dotnet

Uno.ProjectTemplates.Dotnet is already installed, version: 4.1.9, it will be replaced with version .
Uno.ProjectTemplates.Dotnet::4.1.9 was successfully uninstalled.
Success: Uno.ProjectTemplates.Dotnet::4.2.6 installed the following templates:
Template Name                                    Short Name           Language  Tags
-----------------------------------------------  -------------------  --------  ------------------------------------------------------------------------------------------
Cross-Platform App (Prism)                       unoapp-prism         [C#]      Cross-platform/Uno Platform/Prism/Android/iOS/Windows/macOS/WebAssembly/dotnet-new
Cross-Platform Library                           unolib               [C#]      Cross-platform/Uno Platform/Library/Android/iOS/Windows/macOS/Linux/WebAssembly/dotnet-new
Cross-Platform UI Tests Library                  unoapp-uitest        [C#]      Cross-platform/Uno Platform/UITest/Android/iOS/WebAssembly/dotnet-new
Cross-Runtime Library                            unolib-crossruntime  [C#]      Cross-platform/Uno Platform/Library/Android/iOS/Windows/macOS/Linux/WebAssembly/dotnet-new
Multi-Platform App                               unoapp               [C#]      Multi-platform/Uno Platform/Android/iOS/Windows/macOS/Linux/Tizen/WebAssembly/dotnet-new
Multi-Platform App (net6)                        unoapp-net6          [C#]      Multi-platform/Uno Platform/Android/iOS/Windows/macOS/Linux/WebAssembly/dotnet-new
Multi-Platform App (WinUI)                       unoapp-winui         [C#]      Multi-platform/Uno Platform/Android/iOS/Windows/macOS/Linux/WebAssembly/WinUI/dotnet-new
Multi-Platform App net6 (WinUI)                  unoapp-winui-net6    [C#]      Multi-platform/Uno Platform/Android/iOS/Windows/macOS/Linux/WebAssembly/WinUI/dotnet-new
Uno Platform WebAssembly Head for Xamarin.Forms  wasmxfhead           [C#]      Cross-platform/Uno Platform/Xamarin.Forms/WebAssembly/dotnet-new

I used uno-check --preview:

dotnet tool update -g uno.check
                 
Tool 'uno.check' was reinstalled with the latest stable version (version '1.3.1').