I wonder if anyone else has experienced this problem.
On one of our workstations, we find that an arc, drawn in Archicad, will 'flip' through the x-x axis when published to Plotmaker. As a result, the arcs have to be redrawn and published a second time, when everything appears normal. However after a few days, on re-opening the drawing in Plotmaker, the arcs have all flipped again, and require to be redrawn in Archicad and republished again.
Today we found a similar thing happened when copying an arc to the next storey using 'copy and paste'. On the ground floor the arc curves from north to east - but on the first floor the arc curves from east to south.
Has anyone any idea why this should happen?
(ARCHICAD 9, on Mac workstations running OSX)