Hello, Carissa!
I solved the problem by going directly to the Estimated Tax Payment Options worksheet ("Est Tax Options" under "Forms in My Return") and filling in the 5th line down in the box entitled "Amount of Estimated Taxes to Pay in 2022"--which reads "Last Year's Overpayment you applied to this year." That corrected the 1040-ES tax vouchers.
But I think TurboTax has an actual bug, because that field was NOT automatically filled in when I opted to apply my refund.
So, to recap, in the Step-by-Step mode, I answered all the questions relating to determining my Estimated Tax, but I did not opt to apply any of my refund. It computed four equal payments and prepared the vouchers. Then, later on, I decided to not take my full refund but rather apply part of it to my 2022 estimated taxes. TurboTax immediately deducted the payment from my refund displayed at the top of the TurboTax screen and included it on my Form 1040, but it never carried the information over to the Estimated Tax Payment Options worksheet, and it didn't correct the first 1040-ES payment voucher. However, after I manually went into the worksheet as described above, the correction was made. In this case my refund exceeded the first estimated tax payment due on April 18th, and I opted to pay off that payment completely. The software then correctly eliminated the first payment voucher from my return.
Although I solved the problem manually, TurboTax did not recognize on its own that I opted to apply my refund and that the first payment voucher needed to be updated and, in this case, eliminated. So I think the TurboTax programmers should look into that issue.
