Alpha 4 Official Release
Workers trying to build a new house have traversed the open unfinished roof area and fallen down into central floor area of the unfinished building.
They are now trapped (because the scaffolding is covering the door) and are hopping up and down in a vain attempt to get out.
I believe earlier I saw a worker walk across the open unroofed area and not fall in.
I’m doubtful this is significant, but I noticed both workers who fell into the house were actually carpenters.