Item does nothing.

I have been working on a zombie defesnse map, something similar to rural zombie onslaught.

Anyways, I am having lumber represent your ammo, and you can get an item that will refill this ammo. My issue is that when I click on the item while testing, it does nothing, not even reducing the charges on the item.

If someone would please help I would really appretiate it.

You have to tick the box with says "Actively used", and "Perishable"