Hey guys I was playing Dishonored, just got it, and then in mission 2 I was getting the bone charm from the storage room, the one where you use the valve or the back window, and I picked it up but it did not go into my inventory. This is a redo of the mission, I messed up the first time. Can anyone help me?

Edit 1: Sorry meant to say bone charms not runes

I don't know why that would happen, but you want the Dishonored forum. This is the Dishonored 2 forum.