I redownloaded the file. But the result was the same. Some geometries of the booties are lacking in my environment. I got the same result with Poser on Windows Vista.

I couldn't see that problem with my 3D program or DAZStudio.
I saw that with only Poser.
And now I saw that problem on your promo image "monkeycloud_rocketbairn_promo1.jpg". But it may be my mis-recognition. Because it is a small part.
Other promo images seem to have not that point. Did you make the promo1.jpg the same time as other promo images?

Forgive me if this was an impolite act, now I tried to open your obj file by a text editor.
I have heard that some program needs Line-Feed to read a file in a single-line units.
I added LF in the end of the obj file.
The left(RihtBootie) is that result.

But I am still doubting my environment of Poser and MacOS. And my Vista is working in a virtual system on MacOS.
I would like to know whether every Mac user will see such a status.

I think it is good if this matter is a cause of only my environment.