IDEA 12.1.4 stall

Updated to 12.1.4 this morning. Just had IDEA stall become unresponsive on creating a new class. Logs seemed to be filling with same exception?
YouTrack it? known problem? look somewhere else (plugin)?

Had to kill the IDEA process and restart IDEA. UI was repainting but otherwise completely unresponsive.

Logs keep reporting:

2013-06-11 12:38:39,942 [12929948]  ERROR - com.intellij.ide.IdeEventQueue - IntelliJ IDEA 12.1.4  Build #IU-129.713
2013-06-11 12:38:39,942 [12929948]  ERROR - com.intellij.ide.IdeEventQueue - JDK: 1.7.0_21
2013-06-11 12:38:39,942 [12929948]  ERROR - com.intellij.ide.IdeEventQueue - VM: Java HotSpot(TM) 64-Bit Server VM
2013-06-11 12:38:39,942 [12929948]  ERROR - com.intellij.ide.IdeEventQueue - Vendor: Oracle Corporation
2013-06-11 12:38:39,943 [12929949]  ERROR - com.intellij.ide.IdeEventQueue - OS: Windows 7
2013-06-11 12:38:39,952 [12929958]  ERROR - com.intellij.ide.IdeEventQueue - Error during dispatching of java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@3b7a9c0a,notifier=null,catchExceptions=false,when=1370950719951] on sun.awt.windows.WToolkit@50ffdf13
java.lang.NullPointerException
 at com.intellij.openapi.wm.impl.IdeRootPane$2.getCenterImage(IdeRootPane.java:203)
 at com.intellij.ui.components.JBPanel.paintComponent(JBPanel.java:90)
 at javax.swing.JComponent.paint(JComponent.java:1054)
 at javax.swing.JComponent.paintChildren(JComponent.java:887)
 at javax.swing.JComponent.paint(JComponent.java:1063)
 at javax.swing.JLayeredPane.paint(JLayeredPane.java:585)
 at javax.swing.JComponent.paintChildren(JComponent.java:887)
 at javax.swing.JComponent.paintToOffscreen(JComponent.java:5228)
 at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1512)
 at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1443)
 at javax.swing.RepaintManager.paint(RepaintManager.java:1236)
 at javax.swing.JComponent.paint(JComponent.java:1040)
 at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
 at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
 at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
 at java.awt.Container.paint(Container.java:1967)
 at java.awt.Window.paint(Window.java:3877)
 at com.intellij.openapi.wm.impl.IdeFrameImpl.paint(IdeFrameImpl.java:454)
 at javax.swing.RepaintManager$3.run(RepaintManager.java:807)
 at javax.swing.RepaintManager$3.run(RepaintManager.java:784)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
 at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:784)
 at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:757)
 at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:706)
 at javax.swing.RepaintManager.access$1000(RepaintManager.java:62)
 at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1651)
 at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)
 at java.awt.EventQueue.access$200(EventQueue.java:103)
 at java.awt.EventQueue$3.run(EventQueue.java:688)
 at java.awt.EventQueue$3.run(EventQueue.java:686)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)
 at com.intellij.ide.IdeEventQueue.d(IdeEventQueue.java:700)
 at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:525)
 at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:348)
 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)