fix

Apply fixes from #3491

Author: NoelStephensUnity

com.unity.netcode.gameobjects/Runtime/Core/NetworkManager.cs

@@ -1265,8 +1265,8 @@ internal void ShutdownInternal()
             // In the event shutdown is invoked within OnClientStopped or OnServerStopped, set it to false again
             m_ShuttingDown = false;
 
-            // Reset the client's roles
-            ConnectionManager.LocalClient.SetRole(false, false);
+            // Completely reset the NetworkClient
+            ConnectionManager.LocalClient = new NetworkClient();
 
             // This cleans up the internal prefabs list
             NetworkConfig?.Prefabs?.Shutdown();

com.unity.netcode.gameobjects/Runtime/Core/NetworkObject.cs

@@ -913,6 +913,14 @@ public void Despawn(bool destroy = true)
             NetworkManager.SpawnManager.DespawnObject(this, destroy);
         }
 
+        internal void ResetOnDespawn()
+        {
+            // Always clear out the observers list when despawned
+            Observers.Clear();
+            IsSpawned = false;
+            m_LatestParent = null;
+        }
+
         /// <summary>
         /// Removes all ownership of an object from any client. Can only be called from server
         /// </summary>

com.unity.netcode.gameobjects/Runtime/Spawning/NetworkSpawnManager.cs

@@ -1170,15 +1170,13 @@ internal void OnDespawnObject(NetworkObject networkObject, bool destroyGameObjec
                 }
             }
 
-            networkObject.IsSpawned = false;
-
             if (SpawnedObjects.Remove(networkObject.NetworkObjectId))
             {
                 SpawnedObjectsList.Remove(networkObject);
             }
 
-            // Always clear out the observers list when despawned
-            networkObject.Observers.Clear();
+            // Reset the NetworkObject when despawned.
+            networkObject.ResetOnDespawn();
 
             var gobj = networkObject.gameObject;
             if (destroyGameObject && gobj != null)