Inconsistency in emissive textures being applied

[onyx zephyr]

I've been running into an issue where my emissive textures aren't be applied in a consistent manner and I can't solve what may be causing it. You can see the emissive applied to the majority of the first drowned model but the head doesn't glow for some reason. The default drowned model works as intended. Baby drowned are not receiving emissive textures at all

texture and emissive texture for trident drowned, as example. The face should be lighting up the same as the rest of the body