So when I search another player after I tie him, I can see the items and all, but the weight meter is bugged, as it says that the player is holding more than the limit, as seen below. I counted the weight of the items, should be about 9 kg.
(http://cloud.steampowered.com/ugc/1119411831379305453/95027B13CD8760C919E4DB3663340A613D60E299/)