Maybe it's not a bug... I won't use the tracker until I'm sure. But I have looted a lot of weapons like "(another adjective) (weapon kind) of seduction" like the Scruffy Broadsword of Seduction. So that made me think that every weapon that includes of seduction in its name, gives you the extra strength. The same with other adjectives like Owls and Dark (that raises the slash, even if it the sword has another bad adjective) and that stuff... until I looted my Spidersilk Bronze Broadsword... the Spidersilk weapons are suppossed to raise my agility level... but why this one doesn't have any effect??? Maybe it's because I have the max agility, but even having the max, I can still raise other stats with this kind of weapons.
My question, in a few words is: How can a sword named like another one that has magical effect raising your agility, not to have any effect?