Strange beahavior of Suckah under Windows 8 and 10

nangyor's icon

Hi,
Under Windows 10 and Max 7, I just open the maxhelp of the suckah object. When clicking with the mouse, Suckah outputs wrong values. On the screenshot attached, I just clicked on the red square :

Same with Windows 8.
Under Mac OS Sierra, output values are corrects : 255 0 0, etc.
Is there a difference of programming between Windows and Mac OS ?
Is it necessary to set original coordinates ?
Thanks a lot for your tips,
Claire