That issue may be because you built the house on a platform rather than a foundation. Platforms aren't really intended to act like a foundation so, all kinds of odd things can happen when you do it that way. The best way to do it and get the fewest problems, I've found, is to build the house on a foundation using the room tool, raise it, then put any platforms in, then adjust the foundation height to whatever height you want and go from there, adding stairs, doors, windows, etc. For your patio, you could use a separate platform for that if you want. Platforms will work just fine against a foundation so you can have it a different height than the foundation.
Hope this helps.
Thank you so much!! I’ve been searching around foreverr for an answer and this is the most clear one I’ve seen that fully answers my question!
I’ll try what you said^^ Thank you again!
