Did you have a chance to get in touch with Moodle administrator of your school’s Moodle site or find the answer here https://moodle.com/contact/support/ ?
It seems like to be a bug, and it needs more technical support. You may also look for the solution in this group ‘Particularly helpful Moodlers’. There are many developers and testers there. I hope they will be able to assist you in case you can't reach a Moodle administrator.
It seems like to be a bug, and it needs more technical support. You may also look for the solution in this group ‘Particularly helpful Moodlers’. There are many developers and testers there. I hope they will be able to assist you in case you can't reach a Moodle administrator.