You have added on to a very old thread. You don't enter your 401K contributions as IRA. You only enter them from your W2 nowhere else. Or do you have self employment income? IRA contributions are limited to 6,500 + 1,000 for over 50. What are you trying to enter?
IRS Pub 590-A IRA Contributions
https://www.irs.gov/pub/irs-pdf/p590a.pdf
