if I was a gambling man I would bet at this point if you still have an import issue and have tried all the usual troubleshooting steps it's unlikely you'll fix it quickly and probably waste many hours on the phone with TT.
unless you're day trading options and have a lot of 1099-B adjustments (wash sales, AMD, non covereds) which are best input at detailed level to generate Form 8949 and avoid mailing the IRS, most 1099-B can be entered at summary level and INT/DIV are easy to input, usually need manual adjustment anyway.
