My monitor is the AOC 24G2W1G4 which supports 144hz. Ive had this for almost 6 months. I left my monitor on for some moment then suddenly my screen started to break in half. Somehow, I changed the resolution and refresh rate to bring it back to its normal form. However, whenever I switch back to 144hz it somehow breaks in half. I have no idea how I can run it in 144hz normally.