[Moose-dev] Mondrian error

Hi Alex, I have already planned to migrate my tools to use Roassal... But for now I have to use what we have with Mondrian because we are preparing an evaluation on our tool in Pharo1.4. I suddenly have a problem that I do not know to detect I draw a map with dominanceTreeLayout or forcedBaseLayout. When the layout is dominanceTreeLayout I am getting the red rectangle with the cross. Sometimes i get it immediately or sometimes I see part of the visualization and when i move the scrollbars the red rectangle appears. How can I debug that?, I haven't changed my code and I have no idea what is failing now if I open the same visualization with forcedBaseLayout it works fine. Regards, Veronica