Z-Offset can be an issue if it's set to the wrong thing. I've seen so many Misleading YouTube videos on this subject I decided to make a chart to explain. I hope it helps some people who don't have auto level 3DPrts.
Has this been an issue for others or am I just the last to find out I've had my Z offset on a random number. Please note the shim-height is the thickness of the paper or anything you wish to use when bed leveling.