arrows disappearing
 

Okay I noticed this just now. I buy 5 stacks of arrows before I go farming. One in my ammo slot and 4 in my quiver. I happened to have died at chessboard in BBM. I come back to retrieve my corpse and I notice the stack of arrows I equipped does not say 20, it says 1. Where did my other 19 arrows go? Anyone else having this problem?

Are the rest of the arrows in your other stacks?

The game often sticks only one item in the RANGE slot and everything else in the AMMO slot if left to its own devices. It'll let you shoot from the RANGE and then immediately replace the used arrow with another from the AMMO.

Did you use them? As you shoot arrows, the quantity equipped drops down to 1. When you fire that 1, it will pull a single arrow of an identical type from your inventory to replace it. It will not put a brand new stack of 20. And you won't notice that the original 20 has been used until you entirely run out of arrows, since it automatically "reloads" for you.