Werewolves turn into MCA Villagers and do not transform back into werewolves ... this issue can be avoided by turning MCA's villager overwriting off, but even when MCA's overwriting settings is set to a low percentage (20% MCA Villagers and 80% Minecraft Villagers) it appears as though every werewolf gets overwritten.

Thank you for your time.

MCA Version - minecraft-comes-alive-7.5.11+1.20.1-universal