1 Line Fix for your Unity Project

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https://game.courses/mp/ - Multiplayer Mastery Course * for anyone who wants the code, here it is using Unity.Services.Core; using UnityEngine; using UnityEngine.SceneManagement; public class Bootstrapper : MonoBehaviour { async void Start() { Application.runInBackground = true; await UnityServices.InitializeAsync(); if (SceneManager.loadedSceneCount == 1) SceneManager.LoadScene("CarSelection", LoadSceneMode.Additive); } [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)] static void Init() { #if UNITY_EDITOR var currentlyLoadedEditorScene = SceneManager.GetActiveScene(); #endif if (SceneManager.GetSceneByName("Bootstrapper").isLoaded != true) SceneManager.LoadScene("Bootstrapper"); #if UNITY_EDITOR if (currentlyLoadedEditorScene.IsValid()) SceneManager.LoadSceneAsync(currentlyLoadedEditorScene.name, LoadSceneMode.Additive); #else SceneManager.LoadSceneAsync("CarSelection", LoadSceneMode.Additive); #endif } }