We are really struggling with SEB.
Moodle 3.9. Quiz safe exam browser settings is set to "yes - config. manually".
Half of our students can access the quiz without any problems.
The other half can not.
In the logs, it shows the following error:
The user with id '70' has been prevented from accessing quiz with id '195' by the Safe Exam Browser access plugin. The reason was 'Invalid SEB config key'. Expected config key: 'fd7062da617bf255abfc5e5da48cf6ff43824c2c268d349b859167f48a5b307d'. Received config key: ''. Received browser exam key: ''.
Please help!