Someone else gave me the way to fix this TT software error. After entering in all the contributions, click Continue. There is a question whether any of these organizations are subject to the 30% limit (and the question says this is rare). Even though the answer to this question is No, you must instead click on the Yes button. Then you get a dialog that lets you choose the deduction limit for each charity donated to, choosing between 60%, 50/100%, and 30%. This is extremely obscure, and I would not have found it without help. I hope that Turbotax fixes this software error.
