Retirement tax questions

I was hoping you'd be able to help me with a question on this W-2 for a 457(b) distribution.  The income is being reported as you mentioned on line 8T Additional Income.  My problem is, turbotax is NOT recognizing the "federal income tax withheld" on line 2.  I don't see it anywhere in the Payments section line 25 to 32.  Why is that?  Someone from the community suggested I enter this W-2 as a 1099-R but then I don't know how to answer - "Select a code that matches Box 7 on your 1099-R", since what I got is a W-2 and not a 1099-R.  Thanks!