I get a 'Graph contains group nodes with zero width/height' error when I try to layout a graph as a Flowchart. The graph has only one group node with 4 sub-nodes but the width/height is certainly greater than zero. The grpah works fine as hierarchical or BPMN, but not flowchart. I am trying to represent a processing sequence of various spreadsheets, database tables and associated processing tools.
Any ideas of my problem?
Windows 7
yEd ver 3.9
Java v 1.6.0_30