Apartment Doors Not Dropping

Hi peeps,

Unless I am going bonkers, something has happened to doors in SM apartments... I am pretty sure they used to drop with the walls before and now they do not. All the internal doors, the main front door - they all just sit there in their annoyingly upright positions even though I have cut out walls.

Is this the case for anyone else? Is it a bug/an intentional change?

I am totally vanilla, no mods or cc.