Just got the AW3225QF and G-Sync just doesnt work, neither windowed or full screen. The refresh rate is stuck at 240Hz no matter what I throw at it. I cannot tick the G-Sync box in the Nvidia Pendulum VRR test. The firmware is latest, driver is installed and Nvidia driver is also latest. I am using the HDMI 2.1 cable provided with the monitor and a RTX 4080. What can I do?