Camera moves up slightly on pressing play

For the project I am doing, I needed to create a second camera up in the sky that is looking down on the rest of the map. But for some reason, every time I press play this camera moves up slightly. This camera is supposed to be static, it doesn’t have any script on it, nor any animation.

Before pressing play :

After pressing play :


Does anyone know why it does this and how I can stop it ?

Well I do not know why but the camera suddenly stopped moving everytime I press play. I haven’t changed anything on it tho so it’s still a mystery