I asked some friends about this and it is said to be something with the matrixes not being done right

The villager that is not in the bedrock cage is a seprate entity that is now not being renderd correcyl whlie the one in the cage is an ice viliger [ice and fire] with the fisherman carrer
(also sometimes produces a 1283 stack overflow error)

Mods present to Recreate: Techguns 2, Ice and Fire and its coremod