Also the creature object is missing a soundgen record.

T_Mw_Und_AncestorWep_01 use the edited file here if it's not already in data
has animation issues:

The stab animation doesn't work with the way it holds the weapon. The slash animation could be copied (or just add to its keys) as a placeholder fix if the creature needs to become usable
Weapon floats in the air when it dies, the hand or weapon bone needs edited anim for this