iphone 11 pro brightens every dark photo

Iphone 11 pro brightens every dark photo.

when I take a photo or just enter to camera to take a photo, the brightness in iphone changed to dark.

When I take a photo of a person in dark light, it takes the photo and looks good… but as soon as I view it in photos it automatically changes it to a bright photo like it’s in good lighting.

I’ve already turned off night mode, exposure down, etc. There seems to be no way to stop this. I’ve preserved settings and turned everything off, yet still it brightens every photo - and I don’t mean a slight adjustment.. it’s taking a dark photo and making it bright.

Please tell me how to fix this. It happens on both front and facing cameras.

Andrew