Start with a clean moodle with all the default tasks schedules. Navigate to the Scheduled Tasks UI ('/admin/tool/task/scheduledtasks.php'). Disable the '\assignfeedback_editpdf\task\convert_submissions' task from the scheduled task edit page and set the minute value to '*/1'. Run the cron to execute the scheduled tasks 'php admin/cli/cron.php'. Verify that '\assignfeedback_editpdf\task\convert_submissions' has not yet run. Add the following override to the config.php file: $CFG->scheduled_tasks = [     '\assignfeedback_editpdf\task\convert_submissions' => [     'schedule' => '* * * * *',          'disabled' => 0, ] ]; Verify that the 'Next run' column no longer reads 'Task disabled'. Note the 'Last run' time. When the column reads 'ASAP' run the cron again 'php admin/cli/cron.php'. Verify the last run time has updated. Update the override in config.php to set the task as disabled: $CFG->scheduled_tasks = [     '\assignfeedback_editpdf\task\convert_submissions' => [     'schedule' => '* * * * *',          'disabled' => 1, ] ]; Verify that the task is disabled in the UI. Note the 'Last run' time and run the cron again 'php admin/cli/cron.php'. Verify that the last run time did not update.