With the latest version of Moodle 3.0 with PHP 7 support (this week's release), Questionnaire causes entire courses to not load (just display a blank page). This is completely breaking Moodle 3.0. This is in the error log:

[Fri Dec 18 14:05:07.856205 2015] [fcgid:warn] [pid 8260:tid 13576] [client x,x,x,x:52812] mod_fcgid: stderr: PHP Fatal error: 'break' not in the 'loop' or 'switch' context in C:\\Apache24\\htdocs\\moodle\\mod\\questionnaire\\questiontypes
questiontypes.class.php on line 297, referer: https://moodleaddress/moodle/course/index.php?categoryid=2