I'm currently playing Uncharted on PS4. I have found the following. When I'm in cover and want to target an enemy with the L1 key, my player suddenly moves out of cover alone. I don't have this problem with another controller.
Is the controller defective or how can I find out if the controller is not defective?
I would test some games with the "broken" controller and see if it also occurs in other games. If not then there's something wrong with Uncharted
But I also think once, just try another game and then you have the solution!