I made an investment in 2005 in a fund that provides Low Income Housing Tax Credits. Over the years, I have been able to use some credits and carry some forward. These all appear on form 3800. Each year I am able to walk the carryforwards through form 3800, Part III, Box C. Each year TurboTax walked these forward for me. For some reason, the Carryforwards are not in my 2018 return. My 2018 seems to be missing a Form 3800, Part III, Box C form. How do I get my 2017 carryforwards into my 2018 return?