Diagram not showing

[JesseDW01]

hello,

I am trying to get a get blazor diagrams working for starters on a rather simple example.
I created a new Blazor Web project (.NET 9) and used the documentation to add a diagram to the home page.

I added the _Host.cshtml and Home.razor.css:

However, when i run the example, i see an empty canvas:

I have a feeling I am missing something very simple...
The repository is available at https://github.com/JesseDW01/DataBuilder.BlazorWeb

I have tried to add stuff from demo-projects, but can't seem to get it working.

Thanks for any help!