Both boxes were ticked, as you noted.

I was kind of worried about letting a script go messing around with the mesh, but no harm was done.  Well, other than not importing into Vue, that is.

Anyway, I have gone down as far down this road as I care to.
I have linked an offending file.  If you want to check it out for yourself, go ahead.  If you don't, dont.

Your script does not work for me.  I never did see the logic or practicality in uncompressing an non compressed file.  But if it works for you, so be it.

I caught my biggest steelhead while using a borrowed fishing pole, and eating fried chicken.  When I go steelhead fishing, to this day, I take a borrowed fishing pole and some fried chicken with me.