I've had this problem before when I was inadvertently relying on the
order of a std::set of pointers. It was a stupid mistake on my part
but does show how things can be different, even between runs on the
same platform. But from what I've seen OSG uses vectors for the most
part, right?
For most scene graph data vector's are used, but in implementation set's and maps are very common. For writing out to .osg most of it will be serializing contents of vectors.
Robert.
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