NPC Bug with shields

AS title says, NPC mobs show with a shield when looking at them and while you initially fight them. If you run away and disengage combat, then come back to them, they no longer have a shield. Makes fighting them VERY easy.

Have seen this happen on an official server as well as a private (current version).

An axe makes them very easy too, but of course their shields shouldn’t just vanish like that!