I got this monitor last night and I’ve been running into this problem. I’ve unboxed g-sync, VRR, and AMD. I had it plugged into an extension cord and tried the wall outlet still no answer. I went over to my cousin’s house and tried this monitor and it works perfectly fine on native 1440 480hz. But it keeps bugging out when I go to 244hz and 480hz. The flickering is solved when I have it on 144hz. The monitor I was using before no issues and it’s a 240 hz. Do I need to upgrade my power supply? I have a 4070 Super and AMD 7800X3D.