My users discovered that they can create infinite items with this plugin.

1. Have a user with the ability to stack items stack something that is normally unstackable and put them in a chest.
2. A user who does not have the ability to stack items opens the chest and shift clicks the large item stack (sometimes multiple times is required) into their inventory.
3. The non-stackable person will have one item. When they use the item it will be infinite.

Example: Snowballs that never runs out

That is an interesting bug. I'll see if I can replicate it on my end and fix it as soon as I can.

While I am not able to reproduce this specific issue (yet), I'm running into another issue with shift clicking that after the first shift click, any others only add 1 item to the inventory.

Can you provide more specific steps to reproduce and/or do you have a server that I could hop on to help test this?

Thanks,
Haveric

That bug seems to be how they were doing it. The user with no stacking privileges acquired a single item after shift-clicking a stack of items that were not normally able to stack, and that single item was an infinite item.

I wasn't able to get an infinite item out of it, but there is definitely something broken.