Update: this was answered on this forum post.

Oh wow, that's a shame to hear that. Thanks for the response.

It's entirely possible this may have been solved by someone already, but looking here on another forum post was not promising. In the editor, whenever I place down any of the farmhouse or house objects (FarmHouseA, FarmHouseB, FarmHouseC, HouseA, HouseB, HouseC), all I get is an odd brick cube that ...

This is still an issue. If someone came up with a fix, please post it.