USD authored in houdini solaris not working properly in painter

I am also having issues with Substance Painter interpreting USD files generated out of Solaris, specifically as it relates to flipped normals...

Here's what I think I know -

Houdini is a right-handed coordinate system and obsererves right-handed vertex ordering.

USD is a right-handed coordinate system and obsererves right-handed vertex ordering.

Substance Painter  is a right-handed coordinate system and obsererves right-handed vertex ordering.

However, it seems as if either Houdini is exporting USDs as left-handed OR Substance Painter is incorrectly interpreting Houdini generated USD's as left handed.

I found an immediate fix for this is to enable 'Reverse Polygon Vertex Ordering' when exporting USDs from Solaris - usdexport SOP docs (under 'Reverse Polygon Vertex Ordering').f

However, this is unacceptable for anything other than a one-off.

Can we get someone at Adobe to double check this perhaps? See attached Solaris generated USD. Why are the normals flipping between two seemingly right-handed coordinate system based software and USD which should also be right-handed by default?

Please note, the attached USD files SHOULD be named correctly (left handed = reversed vertex order / right handed = Houdini Solaris default). 

Or at least I would attach the USD files if your forum would let me attach the USD files. Adobe - might want to add that.

Hello again, I've found the issue here, it's because the models had no subdivision scheme attribute. In Solaris, you can either author one yourself or turn on 'Treat Polygons as Subdivision Surfaces' for the SOP Import or SOP Create LOPS. To see the issues I was having, just remove any subdivision schemas and import them into painter and your mesh will look weird.