You'll also want to go to Other Tax Situations -> Extra tax on early retirement withdrawals and enter the same $6,000 as exempt from penalty due to the first home purchase.
Between 2013 and 2019 I reported more than 70 TurboTax bugs mostly in the retirement section, around half which were eventually fixed (with the others being mostly uncommon problems that are likely still present), but I no longer have that access and it's almost always an onerous process to get such problems acknowledged by TurboTax Product Quality. Perhaps @DaveF1006 can report the problem. A number of users have posted about encountering Roth first-home purchase problem in 2020 and 2021 TurboTax. (This bug was not present in 2019 TurboTax.)
