Google Pixel 6 screen issue after replacement

Hello everyone,

A few days ago I ordered a new screen here for my Google Pixel 6 because my current screen got some cracks in it. After replacing the old screen with the new one from iFixit, the screen turns green in the corner at low brightness and it flickers/ it is adjusting its brightness (without the phone doing it by itself). I opened the phone up to check if I made a mistake during the installation process and even reinstalled my old screen, and my old screen does not have this problem. I even tried factory resetting my device and calibrating it again via the link in the repair guide, but all these steps do not fix the screen problem. Does somebody have an idea what the problem can be? I think I might have gotten a bad copy or am I missing something?

Best regards, Jeroen