@pgmorgan There is a new update as of this morning, 2/24/22.
The problem of incorrect transfer of schedule AI line 27(a) to form 2210 line 10(a) is fixed.
The issue with exclusion of the Form 1040 line 12(b) amounts remains uncorrected, as well as several other errors that have been pointed out elsewhere (see: https://ttlc.intuit.com/community/taxes/discussion/re-2021-form-2210-calculation-error/01/2513180#M9...).
It seems good enough for me (albeit with some remaining errors), hopefully it helps you as well.
