Had the same problem and this worked for me: Identify the items that have codes associated with them such as wash sales. Enter everything else as a summary and these items individually. Nothing then required to send in. In your case that would mean not importing at all.
To check: Enter the items to be summarized. Then check the TurboTax message to see if it says you don't have to provide anything else. Then enter one of the items with codes with all the details. Again check to see if the TurboTax message says you don't have to provide anything else to the IRS. If so, enter the rest of them.
