House with garage under 1st Floor

[anditx14]

Thanks for all of the welcomes! And thanks for all of the suggestions.

I got it to show correctly with adding a ceiling to the garage under the deck and using terrain hole to cover the terrain that was bleeding through the walls of the garage. It seem that decks default to having terrain under them.

If I touch the deck in anyway, the garage is reset to default values on the floor and ceiling, etc. that are not the ones I would like in the garage. But if I leave the deck alone, it seems to work. Not sure why it resets when I touch the deck. this means other than decks default to having terrain under them. I am not sure if that's the way it should be but it seems to be showing everything correctly.