Zombies and skeletons will not take damage when hit by splash/lingering potions of harming
Zombies and skeletons don't take damage from insant damage potions
Created Issue:
Zombies and skeletons will not take damage when hit by splash/lingering potions of harming
Zombies and skeletons don't take damage from insant damage potions
By design, undead mobs take damage from healing potions and get healed by harming potions. See for example
MC-2047.