In both of these versions I ran a check on the XY square. At the end of the process I was told the settings could be changed to improve accuracy.
When I ran it again after the alteration in1.4 it made the x travel 1/2the set distance.
Reset to default and it ran the square saying I was out by 0.41mm then I agreed the changes for accuracy however the job I then ran cut ovals instead of circles.
Loaded 1.4.1 today and ran the square test and it says I am out by 0.33mm. Updated the accuracy and ran the same job and yes ovals again.
Reset to default and I have circles.
Sticking with default settings for now.