Well looks like samsung has done it again with a fault with there hdmi 2.1 port, the only reason i brought the tv. They are currently having problems with ps5, xbox and the rtx3000 series cards. Same issue since its release, almost all the other brands have remedied the problem but it still persists with most samsung models. Basically if you try to use the 2.1 port at any resolution or colour output chances are it will constantly flash or lose connection, your settings might reset, hdr will often turn on and off also causing flashing. If you have no concern about using hdmi 2.1 or 4k 120hz full color gaming then its actually a decent set...view more