I have the same issue with box 16 Indiana. When I plug in the suggested numbers it wont let me efile but tells me i can snail mail them. But I am reasonably sure the refund amount is elevated quite a it based on past years. I am going to wait until March

It is hard to tell exactly what issue you are experiencing with box 16 Indiana because you do not mention what form you are entering.  

Please clarify your question by telling us the form you are entering and any messages you are seeing on the screen so that someone can try to provide assistance.