Hi. I am working on downgrading TFS 1.5 by Nekiro to version 8.0. I thought I had made a mistake, so I tested it on a clean TFS 1.5 (8.0) and the official Tibia 8.0 client. The problem is that items can be thrown through walls. This is possible when there is no ground above the walls and we are in a room without a ceiling. If there is ground above the walls or we try to throw an item into a room with a ceiling, it is not possible. However, I can still throw items through walls on the same floor (when there is no ground above). Please check the video below.
gyazo.com