I am having the same issue. Except I have two children and am not under any court order. My wife and I are under 65 so no need for a Form 24 (Over 65 grocery credit). My wife and I have lived in Idaho for a few years so Form 43 (Part Time Resident) is not relevant. Our daughter is 2 years old and has lived in Idaho her whole life. Our son was born December of 2022 so that is the only thing that I think maybe causing the issue. I have put his eligible months at 0, 1 and 12 and still get the same response from turbo tax that my form is ineligible for e-file and must be mailed with the court order with added qualifying children. Since I do not have any court order I am not sure why turbo tax is kicking this back and saying it is ineligible for efile. I believe there is a bug in the system.
