Going back through the program and entering $600 on the screen Charitable Cash Contributions under Cares Act then completing both the federal review and Final Review shows the correct amounts in 12a, 12b and 12c.
In Forms mode review Form 1040 - Line 12a has the amount for the Standard Deduction, Line 12b has the $600 amount and Line 12c has the sum of Line 12a and Line 12b.
