Hi - I had the same problem, and left that answer blank, so it let me finish. However, at the end of the process, when TurboTax was reviewing my tax returns, it says that my federal return "needs review" and it takes me to that section on the 2555-T form to put a number for "number of days in US on business" for the four trips I made in the 2018 tax year. The correct answer for all 4 is "0". Do I also leave this blank, and continue to process the form as is?
