Everything is correct down through line 11, the Standard Deduction on 12a is correct for my status, and there is a $600 entry on line 12b, but there are no entries on lines 12c, 13, 14, or 15 (all of these are calcuated by TT). Perhaps somebody knows what the pre-conditions are for those entries to be calculated.
Solved. The box for line 12c on the 1040 Worksheet was empty but had Override checked.
