There’s a lot of references to child nodes but within the scene. There’s no singleton access to child nodes of the root node of a level. Everything is self contained.
I don’t really have time to work on a minimal reproduction project since I need to focus on preparing the game for release and 4.5 features aren’t necessary for me. Unless you know of something specific with 4.5+ that would cause this and make the functional code stop working, I really don’t know what to say about this issue and I will probably just downgrade engine versions.
Once again, I really appreciate all your help.