@krochat
Thanks. I was able to reproduce the problem. The overrides are not what is causing the problem. Any credit on Schedule 3 line 5b causes the same problem, even a credit that's entered through the Step-by-Step interview, such as insulation. The problem has been reported to TurboTax. I don't expect any response until after Christmas, and even then, it typically takes them a few weeks to get a fix into an update.
