Photos I have taken in the last couple of days don't have the auto adjust option. Still available for all older images in my Gallery. Have I innocently changed something?
SOLVED. Reset camera settings to default. Don't understand why, but it has brought back auto correct for new images. Still stuck without it for those taken recently.
If all else fails, I believe Google Photos app has autocorrect under the edit choice. I use it on my S6 Active where the auto correct is missing from the stock gallery app.