BUG: Form 1040-SR, line 12c

I filed my taxes and then found a bug in Form 1040-SR:

Lines 12a and 12b are added into 12c, but 12c is appearing blank.

Later, the value that should appear in 12c is used, so the calculation is happening, but the 12c field shows blanks.

I cannot imagine the IRS is going to like that.

2022-02-04 11_27_11-2021 Steinborn W Form 1040  Individual Tax R redacted.jpg