Checkbox field not appearing correctly on Marketo form/landing page
I am experiencing an issue with displaying a new field I created to show correctly on a Marketo form embedded on a Marketo landing page.
The goal is to provide people an option to register for one or multiple webinar sessions.
This is the landing page: pages.datastax.com/Customer-First-Webinar-Series.html

As you can see, the Session Time field is not displaying correctly with no text showing and only checkboxes.
Here is how I set up the field on the form in Marketo:


When I preview the form, it looks ok:

Any ideas why it's not showing up correctly on the landing page?