I just finished my return, and I'm getting a message that my return can't be filed for federal or state and must be mailed. The review doesn't show any errors. I have never had this happen in 10-plus years of TurboTax returns, and nothing is new or different this year as far as our return entries go, so I'm concerned I entered something wrong, and there is some random form that shouldn't be there keeping me from filing. How do I determine which form or schedule is the problem?
