In T164099#2298683, @greybeard1212 wrote:

invert is not working for a handful of us, at all. not 3rd person , not camera. when it is applied from settings, in-game it reamins the same.

I had this problem too. Fixed it by going into main menu, option, controls, push "default" button (triangle for PS4). You'll see it the display change to show options under "wireless controller" Try enabling invert again. I loaded again and it works.