Eye textures don't work in live mode

So I'm trying to create default and non-default alien eyes to match the neon skins I've downloaded. Here's what's happening in my Studio and Warehouse:

i.imgur.com/R3Ta7ZI.png

i.imgur.com/HKtdzMi.png

In CAS, the eyes seem to be working correctly. They appear randomly on sims and are restricted to aliens only, but in live mode they are only visible when I get really close to the sim's face. If I zoom out they disappear and instead I get some vanilla eye texture.

i.imgur.com/LZJkOla.png

This happens to both defaults and non-defaults, and to new and existing aliens. What am I doing wrong?

(This is my first post ever, I hope I'm following posting etiquette correctly )