One of the problems this year: the IRS finished the details for form 1116 very late, with the result that TurboTax was finally able to get the form out only on 2022-03-04. After it was installed, all of the flow-through from the other forms was broken, I think because the other forms were designed to assume 1116 would receive the data. I had to do a lot of fix-up, and the final detail was getting the flow from my the K-1s for my trusts fixed up (see method above).
I'd allocate blame equally between IRS (codification sent late to Intuit) and Intuit (minimal testing before release). Can probably also blame the US Congress for last-minute changes sent to the IRS, which is badly under-staffed.
