Generated tiles are displayed wrong in the camera view but they are appearing right in the scene window

Hi, I'm trying to make an endless runner game and so i wrote a little script that should fill my scene, but i have one strange thing. When i start the game and look in the scene view it looks like they are generated correctly but in the game view the first piece is not correct.

This is the script i wrote following an tutorial:

Script on PasteBin

I don't have any idea why it's wrong on one screen and right on the other.