I am having an issue with a drawing dimension coming in at an angle to the part rather than at 90 degrees on the side like normal. I have tried using the center marks as well as the hole and slot surfaces. I have even placed a point at the center of the slot side and attempted to use it with no success. I have used the measure tool and everything is showing parallel or perpendicular so that does not appear to be the problem. Does anyone have any suggestions? SW 2018 SP4.