Animate Guardian isn't working for me.

Hi, all.
I was using animate guardian on one alt when it disappeared sometime after I summoned a perfect guardian turtle.
I assumed it had gotten itself dead, so I redid the gear and went out to get a new one.

No luck.

I am not using a trigger wand; the AG gem is 21 and the guardian should be able to use th gear.

I am able to summon animate guardian on another alt.

Any suggestions would be appreciated. Thanks. :)
Newevil

Never mind.
I am an idiot. I double checked my gear and my helmet (The Dark Monarch) allows double spectres but ONLY Spectre minions.