TurboTax is messing up the advance child tax credit 2021

I'm trying to enter that we received $3000 in advance child tax credit for our 2 kids in 2021 (letter 6419 from the IRS).  As soon as I enter the $3000, TurboTax glitches and adds that full 3K to our federal tax due, like I have to pay the full amount back.  It should only be deducting it from my total $6K child deduction for 2021, not making me pay it back in taxes.  A rep on the phone said this was an issue with TurboTax that was going to get fixed, but I have not heard anything for multiple weeks.  Can someone help me understand what the problem is and when it will be fixed?  I'd like to get my taxes done early but can't with this issue.