[2020] Asset editor error

Backyards that are optional (like the extra tiles for a 2 deep building) only show up when the building spawns in the game automatically. If you place it with for example Find It, it will not add those extra tiles.

You can change the footprint of the building in the asset editor, but that also changes where the building sits on the lot. Depending on the building, that might be fine, or maybe it will look weird.