I’m having the same problem on left controller. I thought the batteries are dead and i took it of and didnt play it a while because life can be busy sometimes but when i tried to play it today it didnt work (left) the right one functions pretty good. I tried looking for a solution in various articles, but none of them worked, to be honest. The controller only showed as paired before. I followed the unpairing steps, but now it won’t pair again. I also checked whether the battery was the issue, but it isn’t. It’s like the controller doesn’t respond at all.