Hey @Caroll this actually seems to be a thing and I managed to find the cause.
The stat modifier template applied to Cimmerians seems to have an accidental duplicate entry for their armor multiplier
As you can see Float 6 (armor) with a value of 60 is applied twice, resulting in NPCs using this template to have 60x their regular armor
Example: A Tier 1 Cimmerian Alchemist has 13500+10 armor instead of 225+10 (10 is the base humanoid armor)
The reason a lot of us didn’t notice is because this template is only used by lower tier NPCs, the high tier ones have a separate “Elite” template, which does not have this issue.