It's been working as advertised for me. Black Vine Villa, one I have right now, has a gate that leads to a courtyard, that then lets me go inside the actual house. When I travel inside, it puts me in the courtyard, which is where it should put me, since that's where the door puts me when I use it from the map.

Traveling to the inside of the Grand Psijic Villa should put you on the circular pool of whatsit that serves as its exit portal back to Artaeum, just as it always did before.

Traveling to the inside of any house should put you just inside its entry point, as though you just entered from whatever zone it's located in. For some housing that will be inside the house or apartment itself, but for other housing it will be in a courtyard or other large "exterior" space.

Traveling to the outside of any house should put you just outside its exit in whatever zone it's located in-- so in the case of the Grand Psijic Villa, that would be the circular pool of whatsit that's just outside the museum or whatever.

Ah, yes, thank you for the replies. I did misunderstand. I thought "inside" meant that you could travel to the inside of the actual house (indoors). Thanks for the clarification.