The screen brightness of my new Note 9 keeps changing. I set the brightness in settings but as soon as i close the App after about 10 seconds the screen gets darker again. If i re-open the Settings App the "slider" has moved back to where it was before i increased it. If i increase it again and close the App after about 10 seconds it reverts to the darker setting. And so on... I have tried turning off the Adaptive screen setting but as soon as i close the App it turns itself back on.
