diff -r 8997822f6482 javafx-ui-common/src/javafx/scene/layout/Region.java
--- a/javafx-ui-common/src/javafx/scene/layout/Region.java	Mon Apr 15 14:49:40 2013 -0700
+++ b/javafx-ui-common/src/javafx/scene/layout/Region.java	Tue Apr 16 10:45:46 2013 -0700
@@ -1906,7 +1906,7 @@
     /** @treatAsPrivate */
     @Override public void impl_updatePG() {
         super.impl_updatePG();
-        if (_shape != null) _shape.impl_updatePG();
+        if (_shape != null) _shape.impl_syncPGNode();
         PGRegion pg = (PGRegion) impl_getPGNode();
 
         final boolean sizeChanged = impl_isDirty(DirtyBits.NODE_GEOMETRY);