Companion Name Inheritance Inconsistent - Frozen Mandible / Nettle Ant

Captured Frozen Mandible companions have various information screens / gem names display as Nettle Ant. My partner has captured several of them to test. The names populate differently upon capture. Perhaps some kind of variable defaulting to an older name?

Potentially related: The name on the health bar is static and set to Frozen Mandible instead of randomly generating a unique name like many other companions. Not sure if that "custom name" is a bug or a feature, but I've certainly been enjoying that layer of specialness added to a living tamed pet-esque creature compared to a spectre or other undead summons.