I have the same issue.
I'm using the online version, but I think the language is similar to the desktop version.
I opened a traditional IRA in 2025, and immediately converted to Roth IRA. In TurboTax, I saw
Did you have any nondeductible IRA contributions to your traditional IRA from 2024 or prior years?
Nondeductible contributions are tracked on Form 8606 in your prior year returns.
I answered No.
After that, I answered some more questions. However, there is never a question about 2025 nondeductible selection. Therefore, I can't claim nondeductible for this backdoor conversion. Let me know if I missed anything. I think there is a bug in TurboTax.
Thanks.
