Samsung odyssey G7 CRU Hz issue

[Styles 2420]

I am new to using cru and am having some issues. I currently have the Samsung odyssey g7 32 which runs up to 240hz at 1440. I have gone through windows and changed the settings to 240...however cru is showing that I'm running 1440 at 59hz. The monitor is also set to 240hz. Now when I change the settings on the monitor to any other hz - 60/120/144 it changes in cru accordingly. But as soon as I change the monitor to 240, cru drops back to 59hz. When I try to change it, cru only lets me change to 144hz max...and will not allow me to enter 240. What can I do about this? Why won't it let me change my Hz to 240? Thanks in advance