Quote - But why would it be loading thumbnails (and anything else) for anything but the branch of the library that is currently opened on screen...?

That's one of the many things I've been wondering.  I like to navigate the new library better than the old one.  I'd prefer the old one, though, if the new one is interfering with Poser functionality.  Pity there isn't an option to switch off one and use the other.  Or at least switch off the one and use some external utility, if needed.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.