Quiz doesn't work right. I can answer all the questions correctly but when I mark the lesson as complete I get an error message saying I am trying to change something I am not allowed to. It is now marked as complete when I refresh it but that error message may confuse other learners.
Thanks, next time you face this error, could you copy paste or take a screenshot of the error message, please? That's so I can forward it to the platform's developer, it will help them fix it.
I've personally not encountered that bug testing the quizzes, so it may only happen in specific cases. Thanks for the report!
A screenshot of the error message can be found here: https://ibb.co/0y3RVFH