Failing in a broad sense means that you failed in the final exam and took the make-up exam, or failed in the make-up exam, or your final exam score was too low (generally less than 30 points) and you made the make-up exam directly. In other words, whether it is a make-up exam or a retake exam, it is a failure. Don't we usually say that we failed in the final exam, that is, failed? However, such a failed subject belongs to "small hanging". OK after the make-up exam
Your school says that failing more than five courses belongs to a narrow sense. The extended meaning reconstructs five subjects for you. Commonly known as the big crane.
I don't know what your school rules are. Anyway, our school has retaken several courses. There are many people who have taken more than five make-up exams, and there is no one who has never seen a degree certificate. However, there are too few people who want to retake five subjects, and it is not so easy to retake five subjects.