O am having EXACTLY the same problem and cannot get a response from Turbo Tax. I put in UK Teacher's Pension address, check the box for foreign address and when I am ready to file, it won't let me proceed because lack of FED ID. I also tried zeros and 9's but to no avail. I think it is a 2017 glitch I have not had problems with before. Did you receive any resolution from TT?
