I have encountered the same bug. I can correct it by answering the questions again, but each time I open TurboTax it comes back. Tech support tried to tell me it was because I had the latest OS (Security) updates on my Mac and closed the ticket! This made no sense since the CPA was able to reproduce the problem on her Windows system. I called back and opened another ticket. My concern is that not everyone will see this error. It makes a BIG difference to my taxes and gives me a refund when I actually owe more money. Other people might not realize what is happening and then go ahead and file. I hope they fix this soon...
