As far as I can see the Scheduler's behavior is expected when configured as in your screenshot. See this dojo
example and this short screencast
. As explained in the documentation
the max option sets the maximum date that you can navigate to using the Scheduler's navigation, so for example if you have January 1, 2014 selected you will not be able to navigate with the "forward" button to January 2 or select it from the DatePicker. You are allowed to navigate to previous dates, but not to dates after the date set to the max option. Still you can navigate to a date after January 1 manually, by selecting a slot in the Month view and then switching to Day view.