Auction item's Effect Preview.

Why some item's effect/aura can be shown in the auc house when we clicked on "preview on avatar" but some cant?
Example:Killing Ring shows it's Red Skull Aura,Exorcism Artifact shows it's Green Soul Aura.
But,Genius Artifact,Kershal,Pavise and many other(i guess) dont show.Because of the date these items released?

I dont need sleep,i need answer.

Not just old stuff, Albert Arti for example doesn’t show aura but it has one


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What is the price of this ítem? Fighters Gaming Cap for warrior

very rare can swap to a jupiter aura and they add gold

don't overload the small area with effects

ψ(｀∇´)ψ Chivalrous Union ᕦ(ಠ_ಠ)ᕤ