https://bugs.kde.org/show_bug.cgi?id=376804
--- Comment #2 from Ralf Habacker <ralf.habac...@freenet.de> --- How to debug: 1. Compile umbrello with debug informations (the easiest way is on linux) 2. Set a breakpoint at the line mentioned below 3. start umbrello 4. add a sequence diagram 5. add a combined fragment, choose "Alternative" and press okay 6. the debugger will stop at the mentioned breakpoint and you can inspect what happens with the coordinate settings of the related m_dashLines. You need to get familiar with QGraphicsScene and its coordinate system and handling to be able to understand what goes wrong. void CombinedFragmentWidget::setCombinedFragmentType(CombinedFragmentType combinedfragmentType) { m_CombinedFragment = combinedfragmentType; UMLWidget::m_resizable = true ; //(m_CombinedFragment == Normal); // creates a dash line if the combined fragment type is alternative or parallel if (m_CombinedFragment == Alt && m_dashLines.isEmpty()) ...< here set breakpoint -- You are receiving this mail because: You are watching all bug changes.