So since a while if someone gets killed inside or near a house, wall, whatever, bodies tend to fall trough the texture. Since 1.05 it happens very often, that you are not able to loot someone who died inside a house, near a wall, and so on, even if they are just slightly glitched in a texture. Even in open grass, maybe if its a little steep, you often cannot access the bodie at all, OR often you just cannot loot the item which is in their hands (mostly a gun)
This is quite major bug as its happening very often.