Due to the game settings and unfinished tasks, Batman Arkham Knight's perfect crime map is still marked.

1, game settings: The game designer may have deliberately left some marks to increase the complexity and challenge of the game, so that players need more exploration and thinking to complete the task.

2. Unfinished tasks: In some cases, the map mark may still exist, but the related tasks are not completely completed, and players need to continue to explore and work hard.