Null reference on Modal.Show

[ghost]

I am new to Blazor using .Net 8.0 and getting error System.NullReferenceException: 'Object reference not set to an instance of an object.' on Modal.Show.
Instead of using [CascadingParameter] public IModalService Model { get; set; } = default!;, injecting the service @Inject IModalService modal; gets rid of the null reference error but still doesn't show the window. The result from Show method has status "Waiting for Activation".

[ghost]

.Net 8 Support solution helped this.

[wallyhall]

Thank-you - as far as I can see, none of the docs or examples on this repo mention this. I had been pulling my hair out.