我将代码简化为非常简单的代码。如果结构体有Int，预览就会崩溃（如果我在模拟器或真实的设备上运行，预览就会崩溃）

通过iOS 15 Xcode 13.1和beta版13.2测试

import SwiftUI
import Combine

struct MyStruct: Codable, Hashable, Identifiable {
    var id: UUID = UUID() //with Int is ok
    var str: String
}

struct ContentView2: View {
    
    @State private var myStruct: MyStruct = MyStruct(str: "struct1-init")
    
    var body: some View {
        VStack {
            Text(myStruct.str)
                .onAppear(perform: doSometingStruct)
        }
    }
    
    private func doSometingStruct() {
        Task {
            let get = await getAsyncStruct()
            myStruct = get
        }
    }
    
    private func getAsyncStruct() async -> MyStruct {
        let str = MyStruct(str: "struct1-done")
        return str
    }
}

struct ContentView2_Previews: PreviewProvider {
    static var previews: some View {
        ContentView2()
    }
}