With Moodle 3.3.4 and 3.5.2 (Demo site)
Creation  : Calculated multichoice question with Multi answers allowed

As soon a student choices a wrong answer with a negative note in interative mode (with one or more hints) Moodle crashes

Exception - Argument 1 passed to qtype_multichoice_multi_question::disable_hint_settings_when_too_many_selected() must be an instance of question_hint_with_parts, instance of question_hint given, called in [dirroot]/question/type/multichoice/question.php on line 488

More information about this error
 
Debug info:
Error code: generalexceptionmessage
 
Stack trace: * line 474 of /question/type/multichoice/question.php: TypeError thrown

• line 488 of /question/type/multichoice/question.php: call to qtype_multichoice_multi_question->disable_hint_settings_when_too_many_selected()
• line 109 of /question/behaviour/interactive/behaviour.php: call to qtype_multichoice_multi_question->get_hint()
• line 86 of /question/behaviour/interactive/behaviour.php: call to qbehaviour_interactive->get_applicable_hint()
• line 112 of /question/behaviour/behaviourbase.php: call to qbehaviour_interactive->adjust_display_options()
• line 841 of /question/engine/questionattempt.php: call to question_behaviour->render()
• line 449 of /question/engine/questionusage.php: call to question_attempt->render()
• line 1552 of /mod/quiz/attemptlib.php: call to question_usage_by_activity->render_question()
• line 1515 of /mod/quiz/attemptlib.php: call to quiz_attempt->render_question_helper()
• line 491 of /mod/quiz/renderer.php: call to quiz_attempt->render_question()
• line 450 of /mod/quiz/renderer.php: call to mod_quiz_renderer->attempt_form()
• line 134 of /mod/quiz/attempt.php: call to mod_quiz_renderer->attempt_page()
   
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