Hair Dissapears with UV Texture Map Color Export

[rrubberr]

I have been having a problem while trying to add a carpet to a scene where, when I select "UV Texture Map" for the hair color export mode, the hair does not show in the viewport or final render.

I remember having this issue in classic luxrender, however the old forums that are linked from Google search results are no longer accessible.

What am I doing wrong? Do I need to recompile from newer sources? Thanks in advance.

[B.Y.O.B.]

Can you upload the scene?

[rrubberr]

The scene is over 300 mb; I'll try recreating the carpet and see if that fixes it.

[B.Y.O.B.]

You can also append the carpet into a new file.