remove batch fail

OpenRA.Game/Orders/UnitOrderGenerator.cs

@@ -39,14 +39,18 @@ namespace OpenRA.Orders
 		{
 			foreach (var a in world.Selection.Actors)
 				foreach (var t in a.TraitsImplementing<IPreRenderSelection>())
-					t.RenderBeforeWorld(a);
+					t.RenderBeforeWorld(a);
+
+			Game.Renderer.Flush();
 		}
 
 		public void RenderAfterWorld( World world )
 		{
 			foreach (var a in world.Selection.Actors)
 				foreach (var t in a.TraitsImplementing<IPostRenderSelection>())
-					t.RenderAfterWorld(a);
+					t.RenderAfterWorld(a);
+
+			Game.Renderer.Flush();
 		}
 
 		public string GetCursor( World world, int2 xy, MouseInput mi )