Inversed Y axis for PictureMarkerSymbol Offset when printing

Hello!  I have noticed that when an Offset is set to a  PictureMarkerSymbol, the Y axis are reversed when printing with the Geocortex print tool.

In the picture below, the JavaScript code includes: setOffset(100,100) to each  PictureMarkerSymbol.  The blue squares are positioned at the right and above their real location (true location is the start each label).

/customer/servlet/servlet.FileDownload?file=00P6000000em1QYEAY

When printing, the Y axis is reversed. The blue squares are below their real location.

/customer/servlet/servlet.FileDownload?file=00P6000000em1VJEAY

Any idea how to fix that? Is it a Geocortex bug?

Thanks

Vincent