No its not criticizing your building capabilities, I just would really like to see if this happens to you in singleplayer because it may just be a minecraft based issue and not on our side.
~ @abbythrowsstuff
Of course it's beta I just tested it, and I will now post screenies of something you can try in beta alpha and single player.
[ATTACH=full]13963[/ATTACH]
Just go into creative put a stack of items into the chest on the top and watch the items magically vanish into the other chest. This for some reason does not work in beta. O_O