Recurring Type Picklist fault in VT830. Can't create recurring Events.

Go to the demo.vtiger.com/vtigercrm system. Login and go to Add Event and use the Full Form. Check the Recurrence box. The second picklist which allows you to chose from Daily, weekly etc... Is empty. (The picklist table vtiger_recurringtype is populated however - well it is on the system where I found this issue so I assume it the same on the demo).