Issue: The NodeEventSystem fails to properly report when nodes are added to the scene. This problem affects only node added events, and no other event types.
Workaround: To detect when nodes are added to the scene, use the broadcast notification system, by implementing a NOTIFYPROC and calling RegisterNotification() for NOTIFY_SCENE_ADDED_NODE notifications. Make sure that the plug-in uses only one method to detect the event of a node being added to the scene. If both the NodeEventSystem and broadcast notification system are used the plug-in will receive "added" events twice if the NodeEventSystem is fixed in service pack, which may lead to unwanted behavior of the plug-in.