Lewis Taylor

It's always done that. N is special, because N on points will end up interpolated in N on vertices by the renderer.
It cannot exist in 2 places. If you loaded H9 up and tried it you'd see the same thing.

Is this seriously still not fixed? How hard is it to have a simple gnomon scaling option?

Scene import is doing a brute force load and it's trying to use your existing OBJ level containers settings.
The objects coming in have a higher opinion than any render settings/geo settings so that is why you see no change.

You need to enable velocity blur on the OBJ level containers you need blur on, as if they were going to mantra.
Part of the reason that the whole notion of pulling in data via SOPs Vs writing out USD and loading properly
is just bad news in general. I get it's a quick way to render, but you pay a price in other areas.

So just to be clear, the Scene Import will pull stuff in with whatever values are in OBJ and they have stronger
opinions.