Fix dialog not released on loading error in chart player.

Assets/Cryville/Crtr/ChartPlayer.cs

@@ -84,6 +84,8 @@ namespace Cryville.Crtr {
 			loggerListener = new BufferedLoggerListener();
 			Game.MainLogger.AddListener(loggerListener);
 
+			Game.SuspendBackgroundTasks();
+
 			try {
 				Play();
 			}
@@ -307,6 +309,7 @@ namespace Cryville.Crtr {
 		private void ReturnToMenuImpl() {
 			Master.Instance.ShowMenu();
 			Destroy(gameObject);
+			Game.ResumeBackgroundTasks();
 #if UNITY_5_5_OR_NEWER
 			SceneManager.UnloadSceneAsync("Play");
 #elif UNITY_5_3_OR_NEWER
@@ -379,7 +382,6 @@ namespace Cryville.Crtr {
 			areaJudgePrecision = 1 << Settings.Default.AreaJudgePrecision;
 			forceSyncFrames = Settings.Default.ForceSyncFrames;
 			texloaddone = false;
-			Game.SuspendBackgroundTasks();
 			Game.AudioSession = Game.AudioSequencer.NewSession();
 
 			var hitPlane = new Plane(Vector3.forward, Vector3.zero);
@@ -568,7 +570,6 @@ namespace Cryville.Crtr {
 					started = false;
 				}
 			}
-			Game.ResumeBackgroundTasks();
 			ReturnToMenu();
 		}