NPC Spawn Issue: great plauguebone skeleton

[Ailleian]

i was wondering through burning woods today and i noticed a "great plaguebone skeleton" aside from the regular "GREATER plaguebone skeleton" this one was holding a sword of sorts so i decided to kill it, it dropped a bronze two handed sword and it wasnt given to it because as we know now those items dissapear. i couldnt find record of a "great plaguebone skeleton" being in burning woods and it was slightly odd to see it drop a bronze two handed sword