See issue Test-1

#Data used
chr1 30427671
chr2 19698289
chr3 23459830
chr4 18585056
chr5 26975502
chrC 154478
chrM 366924

Result:
Null pointer Exception

Console message:
INFO: Loaded TAIR10 mRNA in 1.028 secs
java.lang.NullPointerException
at com.affymetrix.igb.view.SeqGroupView.valueChanged(SeqGroupView.java:344)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:184)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:154)
at javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:685)
at com.jidesoft.grid.JideTable$24.setValueIsAdjusting(Unknown Source)
at com.jidesoft.grid.TableUtils.loadSelection(Unknown Source)
at com.jidesoft.grid.TableUtils.loadSelection(Unknown Source)
at com.jidesoft.grid.JideTable.tableChanged(Unknown Source)
at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:296)
at javax.swing.table.AbstractTableModel.fireTableDataChanged(AbstractTableModel.java:198)
at com.affymetrix.igb.view.SeqGroupView.genericServerInit(SeqGroupView.java:610)
at com.affymetrix.igb.general.ServerList.fireServerInitEvent(ServerList.java:527)
at com.affymetrix.igb.view.load.GeneralLoadUtils.discoverServer(GeneralLoadUtils.java:296)
at com.affymetrix.igb.view.load.GeneralLoadUtils.addServer(GeneralLoadUtils.java:180)
at com.affymetrix.igb.prefs.ServerPrefsView.addDataSource(ServerPrefsView.java:237)
at com.affymetrix.igb.prefs.DataLoadPrefsView.updateSource(DataLoadPrefsView.java:381)
at com.affymetrix.igb.prefs.SourceTableModel.setValueAt(SourceTableModel.java:141)
at javax.swing.JTable.setValueAt(JTable.java:2741)
at com.jidesoft.grid.JideTable.editingStopped(Unknown Source)
at javax.swing.AbstractCellEditor.fireEditingStopped(AbstractCellEditor.java:141)
at com.affymetrix.genoviz.swing.ButtonTableCellEditor.actionPerformed(ButtonTableCellEditor.java:61)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at javax.swing.plaf.basic.BasicTableUI$Handler.repostEvent(BasicTableUI.java:948)
at javax.swing.plaf.basic.BasicTableUI$Handler.mouseReleased(BasicTableUI.java:1164)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:290)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)