Actually I am using version 4.6 of MDB which is not on the dropdown.  I opened the date picker in the MBD editor, downloaded it and open the index page. The date picker worked fine. I then copied the sample code including the script to initialize the date picker in to the second step of the MBD stepper. When I select the second step of the stepper, the content for that step slides in from the right with the date picker calendar already open. Assuming that there is probably a conflict with the stepper java script and the date picker java script; I tried to launch the date picker with a button. That did not work either. The script for the button is below. 

I have also had problems with embedding a MDB multiselect in the stepper. The same problem occurs, all the dropdown selections are displayed. 

It looks like there is a conflict with the stepper and any form component. 

<div class="md-form">
  <input placeholder="Selected date" type="text" id="date-picker-example" class="form-control">
  <label for="date-picker-example">Try me...</label><button class="waves-effect waves-dark btn btn-sm btn-primary pickDateBtn">CONTINUE</button>
</div>
 <script>
	$(".pickDateBtn").click(function(){
            $('.datepicker').pickadate();
             });
    </script>