Ugh, thank you @Egor. The file is odd... I have to separate the art for printing on a metallic substrate with a white underprint in some areas to allow some areas to have the metallic show through and some block the metallic substrate. The blue actually = white. It's pretty confusing but how the printer requires it. Glad to know that the end result / overprint preview shows it accurately... I did not think to check that. Thank you for your response.
Ugh, thank you @Egor. The file is odd... I have to separate the art for printing on a metallic substrate with a white underprint in some areas to allow some areas to have the metallic show through and some block the metallic substrate. The blue actually = white. It's pretty confusing but how the printer requires it. Glad to know that the end result / overprint preview shows it accurately... I did not think to check that. Thank you for your response.