If W2 lists your 401k & Roth but you are not to list it on the IRA worksheet (line 20), why do I not attain a savings credit though I did save?

Listing it on the worksheet doubles your claimed deductions and Turbotax should apply it from your W2 but in "Review" I do not get the credit though they are Retirement Contributions. Also the Pub 590a for Roth and 401k is confusing.