Export to jpeg - annoying colour change

i've had problem colour change when export tif jpeg (for web) in ps. don't know why has happened, think might result of last ps update.

 

if export photo jpeg in lightroom have no problems. in photoshop doesn't make difference if choose save as, or export web, colour still changes. if photo has, example, blue sky, sky looks purplish. if there skin tones darker , sort of 'spray tan orange' colour.

 

i'm working in lr prophoto , same in ps. should exporting srgb web? mind you, have tried , no change - still looks awful. i've spent literally hours trying find out what's wrong.

 

help gratefully appreciated.

converting srgb and embedding profile absolute must images going on web.

in save web , export dialogs, make sure both convert srgb , embed profile checked.

if save as, use edit > convert profile convert srgb first, make sure icc profile box checked in save dialog.

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