I'm trying to add a field that has a select box in the widget. When I click the add another item button I get this error: An illegal choice has been detected. Please contact the site administrator.

In the logs, the error says: Illegal choice 0 in services element.

The only thing I can find is something about FAPI not liking selects or checkboxes to be added to forms but I can't find any workarounds or anyone doing anything similar. Anyone know how I can get around this?