Model3D with deep stretching

I used Model3D to display a model:

Model3D(named: "Model", bundle: realityKitContentBundle) { phase in
    switch phase {
        case .empty:
            ProgressView()
        case .failure(let error):
            Text("Error \(error.localizedDescription)")
        case .success(let model):
            model.resizable()
    }
}

However, when I ran, I found that the width and length were not stretched, but when I looked at the depth from the side, they were seriously stretched. What should I do?

Note: For some reason, I can't use the Frame modifier.

Image:

width and length

error depth