You should amend to file for all W-2s, but wait and see because the IRS can automatically adjust your return for the W-2. You should always wait until you receive your refund or your payment is withdrawn, otherwise, things can get very confusing in the amendment process.
To amend, click 2016 below (to be updated in the next few
weeks) and follow the instructions. https://ttlc.intuit.com/replies/3288565
