The error:

Previous attempt record could not be found!

Debug info:
Error code: cannotfindpreattempt this notification

Stack trace:
line 3315 of /mod/lesson/locallib.php: moodle_exception thrown
line 227 of /mod/lesson/view.php: call to lesson->prepare_page_and_contents()

Steps to reproduce the problem:

0. Create a course and a student enrolled if they do not exist yet.

1. Create a lesson (or restore from the attached backup):

• free navigation allowed and navigation menu displayed,
• maximum number of attempts per question - unlimited,
• re-takes allowed - yes,
• minimum number of questions - minimum 2,
• question of essay type and a couple of questions with automatic grading,
• a page that allows to go to any question.

2. Go through the entire lesson as a student, giving correct answers to all questions.

3. Evaluate the student's essay (give maximum grade).

4. Start another attempt as the student:

• answer only one question and skip to the end of the lesson,
• use navigation to go to a page in the lesson,
• see error: cannotfindpreattempt,
• click "continue" and see a notification that the student received more points than possible for the automatically graded questions and that the current grade is 100 out of 100.