Reduce Domain to something more reasonable.NO DEAL WITH ITOPOLOGICALOPERATOR::DIFFERENCEMinX=140.25 MaX=159.499, MinY=-38, MaxX=-18.750.Precision was therefore smaller equalling 111557592. The datas' shapelength was small (0.001).SUCCESSFUL USING ITOPOLOGICALOPERATOR::DIFFERENCE:I then created a new fc (empty) and made a tighter Domain MinX=150 MaxX=152, MinY=-34, MaxX=-32. Precision was now larger: 1073741822.5. ITopologicalOPerator was now successful.