Pillagers get stuck after killing iron golem

Pillagers spawned from outpost (in this case the outpost spawns inside the village) slay iron golem but then continue shooting.

seed -6533340128738916640
village location 200 ~ 2300

upon exiting and reloading world, they become unstuck, but their arrows now have potion effect particles. (see 2019-03-14_12.25.10)