I concur with you @Flinders , the PS23 Iowa module "IA 1040 Schedule 1", line 18 "Federal tax paid for prior years", "Additional Federal Tax Paid for Prior Year (2022) Worksheet" is NOT computing correctly as of Thursday, March 28, 2024.

@IntuitGabi is this a swing and a miss on the PS23 Iowa correction?  Or, did a PS23 Iowa correction not make into the Thursday 3/28/24 update?