When i include my designed PCB as a Gerber RS-274X file (include outline is ticked on) in websites like JLCPCB there always are wrong outline dimensions which you can see in the picture I attached here. The right dimensions even are highlighted in the Gerber Viewer but as I said there always are a few centimeters added on each side and I don`t know why. Does anybody has a clue how to solve this?
Note: the first times i did this I didn`t encaunter this problem, just since this week but I haven`t changed anything since then.