Login as admin Create a course Add a Quiz activity Press Add question Add a question to the quiz Select Grade items setup from menu Press Add grade item Examine webserver logs Confirm you don't see debugging similar to the following: [Fri Sep 06 11:16:19.024459 2024] [php:notice] [pid 23] [client 172.18.0.1:38568] Debugging: This page did not call $PAGE->set_url(...). Using http://localhost:8000/lib/ajax/service.php?sesskey=BG1jWcERn1&info=mod_quiz_create_grade_items,mod_quiz_get_edit_grading_page_data in * line 685 of /lib/pagelib.php: call to debugging() * line 966 of /lib/pagelib.php: call to moodle_page->magic_get_url() * line 106 of /mod/quiz/classes/output/edit_grading_page.php: call to moodle_page->__get() * line 75 of /mod/quiz/classes/external/get_edit_grading_page_data.php: call to mod_quiz\\output\\edit_grading_page->export_for_template() * line ? of unknownfile: call to mod_quiz\\external\\get_edit_grading_page_data::execute() * line 253 of /lib/external/classes/external_api.php: call to call_user_func_array() * line 83 of /lib/ajax/service.php: call to core_external\\external_api::call_external_function() , referer: http://localhost:8000/mod/quiz/editgrading.php?cmid=2