There seriously needs to be an option in the config to block them from attacking players. I accidentally hit a villager who got in the way with a pickaxe (didn't even kill it), all nearby guard villagers who saw it now won't stop attacking unless I kill them. Even with gamerule forgivedeadplayers set to true, they immediately attack the player after respawning. Nothing stops them being hostile, not going far away for a while, or going to another dimension, or logging out, they still attack on sight immediately and if you fight back and other non-hostile guards see it, they'll join in.

At the very least they should obey the forgivedeadplayers gamerule, but that aside, it spoils the fun of the mod when accidental friendly-fire toward villagers or guards can lead to you being forced to exterminate all of them.

Edit: Exterminated all aggressive villagers, made a jobless villager into a guard. He was fine for like a minute, then started attacking me, and I hadn't done anything during that time. So yeah, something buggy with them once any of the villagers in a village start attacking a player. Desperately need a config option to disable being hostile to players.

This is due to your village reputation being low. For now you have to try upping your village reputation via trading and other things without the guards presence.

A config option for the reputation value used for determining if a guard should attack a player will be added in the near future.