Hi, I have a connected pc with RTX 2070 Super graphics card for TV LG Oled B9 SLA. After buying the adapter, it worked fine for the first month. Then after updating the drivers for the graphics card, it stopped detecting TV as 120hz. Forcing me to only handle at 60hz. I went into the card settings and created a non-standard graphics setting: 3840×2160 / 120hz. This results in the appearance of color banding. Graphics drivers are: 460.89. TV drivers: 05.00.10. All the latest. The cable after the adapter is Reinston Hdmi 2.1, which is 2.5 meters long. What could be the problem?