AW2521HF, random red pixels on screen

Hello,

I have had this AW2521HF for around a day now. The AW2521HF is good but whenever I select something in Discord or the internet, it makes the background darker. I tend to get red pixels on my screen. I have done a factory reset, unplugging it and even changing display settings nothing has worked. Is there something I need to do to fix this or is this a known issue?

Thanks