Small issue with the latest build (as of Oct. 26, 2018) with Moodle Moodle 3.5.2+ (Build: 20181019). When authoring a question, single checkboxes (such as "include given note" or "include given register" for the Keyboard Input question) display a "You must supply a value here" warning when the checkbox is checked. However, you can still submit the question, so it's fine as long as users know they can ignore the warning.
Small issue with the latest build (as of Oct. 26, 2018) with Moodle Moodle 3.5.2+ (Build: 20181019). When authoring a question, single checkboxes (such as "include given note" or "include given register" for the Keyboard Input question) display a "You must supply a value here" warning when the checkbox is checked. However, you can still submit the question, so it's fine as long as users know they can ignore the warning.