Two thin black vertical bands near the center of screen

Hello, I bought three of these Samsung Odyssey Neo G9 47" monitors to try to Frankenstein into a working monitor. Two had cracked screens and one had an intact screen, it just would not power on.

Unfortunately one is a different enough model that the parts are not the same inside. However I was able to swap parts from one with a cracked screen to the one with a screen that is not cracked.

Initially it was not powering on but after I swapped out the boards it powered on just fine. However it has two thin black bands equally distant from the center one left of center and one right of center. They are about the width of maybe a thin chopstick.

Each one is about 2 inches from the center.

The menu option that floats around the screen shows the bands as it passes through them. When I plug it into my laptop it works, aside from those two black bands. I have tried several different variations of the boards and it doesn't make a difference. I have reseated all of the cables that go to the boards, but not anything on the panel side.

I'd love some help on this.