Question Issue with Screen not running 144hz

Jan 23, 2022
I would like to ask you a question, as I've came to the point i'm not sure what to do anymore.

So, I've found an issue lately with my graphic card (RTX 3070) not allowing me to turn on 144hz in one of my screens. I'm working on 3 screens currently, issue has happend short after adding third screen to my setup.

My PC:
Intel Core I7-11700F
Nvidia Geforce RTX 3070
16 GB DDR4 (2666 MHz)
500W 80 Plus Gold PSU

Mostly I play League of Legends, so what i need is it to be in full screen, yet when i turn full screen, it runs in 144hz and messes up. Also when I change in desktop my screen to 144hz, it also messes up. Screen below

Been trying to fix it, as In borderless it works well, but I prefer to play on full screen and this happens. Yesterday updated to WIn11, as hoped this might be a fix, but it wasn't. Also did an DDU today and updated to newest graphic driver, still didn't fix it.

Can you please advise and help?