This problem still exists. To add to it, when someone replaces tracks, as soon as you go near it all you see are sparks flying from the replacement... (replacement means where you upgrade the track itself). Have still got the issues of foundations, walls, ect not showing up for other players, as well as conveyor belts now showing movement when they are placed (basically the items the belts are transferring do not show up on the belt. Have checked that it is properly set up, yet you have to pull the whole thing up to even get it to work properly.).