Random failure: backup_and_restore.feature:27

001 Scenario: Backup and restore a course containing a drag and drop into text question # /store/moodle/behat_whole_suite_m_parallel/question/type/ddwtos/tests/behat/backup_and_restore.feature:27

      When I backup "Course 1" course using this options:                               # /store/moodle/behat_whole_suite_m_parallel/question/type/ddwtos/tests/behat/backup_and_restore.feature:28

        Element is not currently visible and so may not be interacted with

        Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'

        System info: host: 'nightly02', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-21-generic', java.version: '1.8.0_111'

        Driver info: driver.version: unknown (WebDriver\Exception\ElementNotVisible)