[Sandman77]

Is the camera still set to 'auto' or is in manual mode and you have the exposure cranked wayyyy up?

 

[Sandman77]

I must admit I haven't used a 3 Pro, but could also be depending on where in the frame its metering from, like it shouldn't be doing it. But you could also try touching the screen to focus on the lightest part of the image, it should then darken to suit the exposure at that point if that makes sense.