Unwanted fading in & out when rending! Driving me insane! Can't figure it out! Please help!

Hello, I’m about to pull the hair out of my head! I have unwanted fading in & out when rending! It’s slowly driving me insane! I can’t figure it out! I keep heaing it’s the Auto Exposure but I’ve followed everyone’s direction but it’s still fading! Please help!

You have to get the right PP volume to fix this. It could be one in the level or on the camera you’re using to render, or…

It’s supposed to be possible to switch it off in the project settings, but I notice that’s still not working