I am having same issue... Our adoption finalized in 2017 and I have a credit through this year but two of my kids are now 18 and 19 which does not affect the carryforward credit - but TurboTax won't let me put in all their information (such as year adoption was finalized and the carry over credit). It worked fine for my 16 year old - so I know the issue is the age. But all of them were under the age of 18 when adoption was finalized so I know the carry forward is valid. Last year I had no issues and even then one of the kids had turned 18, so why does it not work this year?
Turbo tax is kicking it out as an error - but won't even let me input the information to fix the error....
