I had this problem with another exam and it was explained to me that as long as the grades are not entered in wuestudy, the exam is not completed in the system (that is also why the first IR exam is still displayed on the certificate of registered exams in wuestudy). Only when the grades are entered, the system knows that the exam is completed, who has passed and who has not. After that, the exam registration for the second exam should be released.
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