Game Crash/BlackScreen when setting Hz

[NeoFlaveRR]

Hey!

So, the game crashes/goes blackscreen when I set my Hz to 120, 144 or 240Hz.
I have an Alienware AW2518HF, so a 240hz Monitor and I set it to 240hz. It works fine on BO2 or any other game.

Anyone know what to do?

[NeoFlaveRR]

This is what happens. I’m turning it to 240hz, I get a blackscreen on the monitor and my PC is going crazy, see my mouse cursor. I can’t do anything till I close the window then everything works again.
https://streamable.com/f1plha

5600X + 3070 (both OCed) + 16GB 3600 Mhz just INCASE, someone saying it may be on my hardware.
I definitely should run this game over 60hz lol