Pyautogui clicks on a different spot with same coordinates

Hello, I have a little strange issue. I made a simple code starting with:

click on x=493, y=367, y=367)
And basically the whole thing is a loop. I run it in Chrome for a period of time, when I try to run it again now, the first click is not on the same spot. I haven’t changed my screen resolution or did anything else. Does anyone have any idea why the coordinates are leading to a different spot now? I’ve red something that maybe the failSafeCheck can cause problem?