Pest is one of the few remaining Gen2 entities. They will be replaced soon. The newest releases of the core, as it relates to the NPC characters, is targeting Gen3.
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Please be as specific as possible. Does this happen with mod mods loaded besides the creature pack? If so, then add the NPC mods and retest. Not doing it? Then its another mod. If so, its the core.
If you can narrow it down that helps.
Nothing I load in the NPC mod or CreaturePacks would touch the player character beyond