Rive RiveRuntime crash IOS when attempt to load a file with a number of artboard

I’ve a .riv file with two artboards (see screenshot):
• Button Play
• Stars

In SwiftUI I’m loading it with RiveRuntime. If I don’t specify an artboard, it hundreds the primary artboard (Button Play) and works.
If I do specify artboardName: "Stars", the app crashes saying it may’t discover the artboard.

What am I doing improper? Bug or my setup?

//
//  ContentView.swift
//  testRive
//
//  Created by Damiano Miazzi on 06/11/2025.
//

import SwiftUI
import RiveRuntime

struct ContentView: View {
    
  
    
    personal let vm2 = RiveViewModel(
            fileName: "star",
            stateMachineName: "State Machine 1",
            artboardName: "Stars"
        )
    
    
    var physique: some View {
        VStack {
            Textual content("Howdy")
            vm2.view()
                
        }
        .padding()
    }
}

#Preview {
    ContentView()
}

if I do not specified the artboard, the file works and cargo the primary artboard which is Button Play