I found a bug regarding ingots.
When you bring a shipment of supplies inside your shop, the ingots have a good chance of going into the floor. By this I mean you can see their outlines when you place your crosshairs on them, but otherwise they are out of sight. This danger of losing your ingots starts to happen when you have 3 in one package. The more ingots inside one box, the greater the chance that at least one is going through the floor. Strangely enough, I've not yet had this problem with anything else.
https://drive.google.com/open?id=0Bz9YOriNJ0NAV0xK...
I can somewhat tug the ingots around while they are under the floor and make a corner appear above the surface for a second, but I have only successfully rescued one. The others resurfaced on their own a day or two later. I found one had popped back up in the water tank.
I am running version 0.0.63, Windows 64, in Windows 7.