I thought like you and did that but the file is as it should be. I would guess a specific interaction between NX and the Epson printing app is the cause, as it does not happen when printed from another app. I exported it as a jpg. Printed from NX Studio, the nef and jpg have the same magenta cast. Printed from Photo, the jpg has no such cast. It is also not file dependent. I, unsuccessfully, tried over 20 files, with the same result, before thinking about printing from another app …