This can be reproduced in the assertion mode.
This issue actually doesn't relate to Mac and can be reproduced on other operating systems. The issue related to invalid GEF figure bounds calculation (see IFigure.translateToAbsolute).
Assigned to Ivan for further reassignment.
I change coordinate calculation to use IFigure.translateToAbsolute method, it fix bug with assertion mode and with incorrect coordinates recording. The problems can arise with existence Vozone and Tigerstripe tests (need to check it).