From Andrew Bettison, "Problem: the LineStipple pattern when read from an OSG node file is always 0xFFFF, even though specified otherwise in the OSG file.

Cause: possibly a copy/paste typo in src/osgPlugins/osg/LineStipple.cc, line 61:
  if (fr[0].matchWord("functionMask") && fr[1].getUInt(mask))

Solution: change to:
  if (fr[0].matchWord("pattern") && fr[1].getUInt(mask))"

src/osgPlugins/osg/LineStipple.cpp

@@ -39,7 +39,7 @@ bool LineStipple_readLocalData(Object& obj, Input& fr)
     }
 
     unsigned int mask = linestipple.getPattern();
-    if (fr[0].matchWord("functionMask") && fr[1].getUInt(mask))
+    if (fr[0].matchWord("pattern") && fr[1].getUInt(mask))
     {
         linestipple.setPattern(mask);
         fr+=2;