Form 1042-S: My wife was a nonresident alien in 2018, but we got married in 2018

My wife and me are filling out our taxes on TurboTax. I am a US Citizen and we got married last year, but her status on December 31, 2018 was non-resident alien status. She had an F1 visa (3.5 years). She tried to fill out her taxes on SprintTax, but it said she was not eligible for their services. I am filing our taxes as married jointly, but I am not sure how to proceed with the 1042-S form. The income code is 16 & exemption code is 15. Additionally, shes had a SSN# for all of 2018. Any advice or input is greatly appreciated.

Thank you,

Matt