In the "Quiz" activity with the "Adaptive Mode" on, using the "Multiple Choice" questions, when the answer given by the student is correct, the feedback and grade are correct, but a message informing the student was penalized with the Penalty Factor is displayed.
Follow these steps to replicate the bug:
1 - Create a "Quiz".
2 - Create a "Multiple Choice" question.
3 - Define the Penalty Factor.
4 - Add three correct answers with score 33, 33% and one or more incorrect answers.
5 - Log In as a student and try to solve the quiz.
6 - Submit the correct answer.
Bug: The feedback and grade are correct, but an incorrect message informing the student of a penalization with the "penalty factor" is displayed.