Ohhhh, it's "listed" but not seen. I've had that happen a few times over the years when importing something I modeled in Blender, because I forgot to import into Poser at the correct size.
Now I know what you're referring to, so yes, if it's too large you won't see it. Unfortunately, when you download something from another site, you'll never know if it's too large the first time you try to import it into Poser. It's gotten so when I import an OBJ I didn't model myself, I no longer import it at 100% of Original Size. Now I use 100% of Standard Figure. Sometimes it'll still be too big, but at least you should be able to see it, and then you'll know it needs to be resized. I don't bother resizing in Poser, as I'm always afraid of losing detail, but if I know that's what's needed, I'll do it in Blender, and then import the resized version into Poser.
I did that when I downloaded a watering can to use in the Artistic Render I did while testing Satira's Beatrix Larkspur character, because I wanted her to be watering the flowers I used in the render. That watering can was huuuuuge. You can't tell from the images they have on the site I downloaded it from, so there was no way to know something like that would be so large.