They were having problems getting new stock of all the scenic stuff as long ago as April and they responded to a question about it in the May issue of Ironwatch saying they were hoping to get more in the next couple of months
https://drive.google.com/file/d/0B3mtDpUP8miZMWp1SmdBUkFrMzg/view
(Page 26)
but since things have got worse it could be they just can't get a manufacturing slot (remember they had to shift a bunch of warpath vehicles to a new factory despite being happy with the quality coming from their old on)
so pulling stuff that's out of stock and they've no clear info on when it will return from the website?