horrible red tint when exporting from Raw [Lightroom]

Since the software update ie. only recently, when I process an image, it looks perfect until I try EXPORT it, at which point it automatically acquired a terrible red tint. 

(Shooting with a Nikon Z6. Processing on a 2019 Macbook air (retina) fyi)

Tried changing the colour space in the export window. Same red tint result for all colour space options. 

PLEASE HELP!