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Assets/Mirror/Examples/CharacterSelection/Scripts/PlayerEmpty.cs

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+using UnityEngine;
+using Mirror;
+
+namespace Mirror.Examples.CharacterSelection
+{
+    public class PlayerEmpty : NetworkBehaviour
+    {
+        private SceneReferencer sceneReferencer;
+
+        public override void OnStartAuthority()
+        {
+            // enable UI located in the scene, after empty player spawns in.
+#if UNITY_2022_2_OR_NEWER
+            sceneReferencer = GameObject.FindAnyObjectByType<SceneReferencer>();
+#else
+            // Deprecated in Unity 2023.1
+            sceneReferencer = GameObject.FindObjectOfType<SceneReferencer>();
+#endif
+            sceneReferencer.GetComponent<Canvas>().enabled = true;
+        }
+    }
+}