Items are bugged if you have something in your hand and press "X" on a different item, these that were previously in the hand disappear or simply do not allow to take it again,
something similar happens in backpacks, wooden crate, barrels, corpses, clothing or anything in general, it simply does not allow you to take them,
Another different bug is with the barbed wires, you put them in a door, when you open it, the wire is bugged and counts as it is still in place ... when passing through the door, the cable hurts you until you kill yourself even if you move away from the place