I have found that submitted tasks frequently fail to register. Normally restarting IntelliJ and resubmitting will work, but with this particular task even that fails to work. I have submitted this task several times. It passes all tests, but when I go to my task list it is still there. The task passed testing! Your solution to the task was better than 24% other students. You solved it in 1 attempts. The average number of attempts for this task is 1.47. This task has been completed by 1255 students.