[sos][cocos2d-2.1rc0-x-2.1.2] CCBReader Memory leak!

i work on cocos2d-2.1rc0-x-2.1.2,when i get a ccb node by the following code caused memory leak.
when i remove it form scene,the node can not be cleanup,it still has reference
@ CCNodeLoaderLibrary* ccNodeLoaderLibrary = CCNodeLoaderLibrary::newDefaultCCNodeLoaderLibrary();
ccNodeLoaderLibrary~~>registerCCNodeLoader );
cocos2d::extension::CCBReader* ccbReader = new cocos2d::extension::CCBReader;
ccbReader~~>autorelease();

CCNode* node = ccbReader~~>readNodeGraphFromFile, NULL);
if
return false;
//// Load node graph and retrieve the ccb action manager
CCBAnimationManager* animgr = ccbReader~~>getAnimationManager();
if(animgr)
{
CCBAnim* anim = dynamic_cast<CCBAnim*>(node);
if( anim )
anim->setAnimationManager(animgr);
else
{
CCLOG( “LoadDefaultUI dynamic_cast NULL” );
}
}
return node ;@

anyone can show me some suggest?thx!

I have same problem T.T