Error when setting up basic Blazor Web Assembly app

I'm using the components to create a larger app, I'm literally starting, created a basic blazor template and followed the "get started" but I get this after just running the application:

blazor.web.js:1 ManagedError: One or more errors occurred. (Root component type 'Radzen.Blazor.RadzenTheme' could not be found in the assembly 'Radzen.Blazor'.)

This is how my App.razor looks like:

I've never seen such error before - make sure you are using latest Radzen.Blazor similar to our demos:

<PackageReference Include="Radzen.Blazor" Version="*" />

Good day,

I thought this happens when I move my _Import file to root since the first time I run a brand-new project it works but after moving the _Imports I start getting the error.
I am not too well informed on the rendering modes but with the render mode set to Auto I believe it loads server side while downloading the web assembly. So, on my first load it works since it renders server side where I have the Radzen.Blazor Nuget package installed. Then on the second load it tries to render the client side and the package is not installed on my .Client project.
Setting your rendermode to InteractiveServer in App.razor (<RadzenTheme Theme="standard" @rendermode="InteractiveServer" />) or installing the package on the client project seems to resolve the issue. (.Net9, Radzen 6.2.8)

I've updated to latest and I'm also getting this error.